Regulations 2017 2

PORSCHE GT3 CUP CHALLENGE FINLAND

Permanent Regulations 2017 Draft v2 23.10.2016

This is an important document. All participants must read these regulations before starting to fill in the relevant Entry Forms. In case of doubt please contact representatives of Porsche Racing Club Finland (PRCF). The changes of the text compared to an earlier version will be presented underlined. Earlier version 2016: Draft V1 16.11.2015 The Racing Series continues 2017 for third years on Challenge-level. © 2017 PRCF Copying of the Regulations in any form is strictly prohibited without copyright holder PRCF permission. Some information in the bulletin and the 911 silhouette are protected by copyright or are registered trade marks owned by Dr. Ing.hc F. Porsche Aktiengesellschaft and may be used only with permission. The use of Porsche GT3 Cup Challenge Finland–logo is strictly regulated and the use without consent of PRCF / Challenge-organization is strictly forbidden. Request for permission

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TABLE OF CONTENTS: Article 1 SPORTING REGULATIONS 2017 – General 4 1.1 Title and jurisdiction 4 1.2 Administration 4 1.3 Competitors eligibility 4 1.4 Entries and entry fees 4 1.5 Events of the Series 5 1.6 Series points scoring 5 1.7 Qualification 7 1.8 Race heats 7 1.9 Prize giving ceremonies 8 Article 2 SPORTING REGULATIONS – Jurisdiction 8 Article 3 TECHNICAL REGULATIONS 9 3.1 Introduction 9 3.2 General provisions 9 3.3 Safety requirements 9 3.4 General technical requirements and exceptions 9 3.5 Scrutineering 10 3.6 Mandatory markings and Series identification 10 3.7 Eligible automobiles 10 3.8 Engine, exhaust system, cooling system 11 3.9 Engine Control Unit 12 3.10 Power train 13 3.11 Wheel assembly and suspension 14 3.12 Dashboard display and telemetry 16 3.13 Racing fuel and fuel system 16 3.14 Glass panels and ventilation 16 3.15 Brakes 17 3.16 Seat and safety harness 18 3.17 Weight 19 3.18 Wheel rims 20 3.19 Tyres 20 3.20 Ground clearance 21 3.21 Steering system 22 3.22 Miscellaneous 22 APPENDIX 1 Location of mandatory stickers and emblems 25 APPENDIX 2 Ground clearance 27 APPENDIX 3 Class 4 differential lock 29 APPENDIX 4 Tyre regulations 30 APPENDIX 5 Tyre Follow up form 33 APPENDIX 6 Muffler and heat shields 34 APPENDIX 7 Class 4 upgrades and changes 35 APPENDIX 8 Weights 38

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2017 Porsche GT3 Cup Challenge Finland

1. SPORTING REGULATIONS 2017 - General 1.1 Title and Jurisdiction 1.1.1 Porsche GT3 Cup Challenge Finland is a Championship series under control of Porsche Motorsport, organized and controlled in Finland by PRCF, as a member club of Finnish ASN, AKK-Motorsport ry, according to FIA International Sporting Code with Annexes and this set of series regulations. The Porsche GT3 Cup Challenge Finland will be run in four classes but there will be only one Champion. 1.2 Administration 1.2.1 Porsche Racing Club Finland ry (PRCF) or it’s nominee. 1.3 Competitor eligibility 1.3.1 Admittance to GT3 Cup Challenge Finland Series is done by PRCF. 1.3.2 All Competitors/Drivers must be holder of a valid competitors license, at least FIA grade license provided by their National ASN with the track racing permit ( National or International, according to ASN regulations ). All racing cars as well as all the pit and paddock vehicles must have a valid Traffic insurance. 1.3.3 A license check will be organized during the administrative checks at the start of each event as well as the Car documents during the Initial scrutineering of the car.

1.4 Entries and Entry fees 1.4.1 In order to be eligible to score Series points the Competitors/Drivers must enter the GT3 Cup Challenge Series. The entry is made through AKK’s KITI-system. All data must be provided correctly (incl. the number of scrutineering card ) The car marque must be: “Porsche GT3 Cup”. 1.4.2 Series entry will be automatically copied as an entry for each individual Event. In case of withdrawal from an Event it must be reported according to AKK Regulations. Entry to a single Event must be done separately. 1.4.3 A preliminary Entry to any Competitions Class must be made for a single identified Competition Car. Change of Car/Driver is possible 2 hours before the start of qualification at the latest. Fee for change is € 200,00 VAT 0%. Entered cars/drivers must not be cross-swapped. During the Series a Competitor can participate also in another Class with the same or with a different car. With any car entered in the Series, a different driver may participate in a different Class. During any Event another driver may participate the Second race with the same car but he/she must start behind all others without a Qualification result.

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1.4.4 The entry fees for the Porsche GT3 Cup Challenge Finland have been determined at 700,00 € VAT 0% to be paid by 1.4.2017. After this date it’s possible to register in the Series by paying the increased fee 900,00 € VAT 0%. Any Competitor entering the Series after the first Event must pay the same fee 900,00 € VAT 0% when entering next Event.

Only registered Competitors who have paid the Series fee will be classified as starters of any race and can score Series points. Competitors may participate in any single Event by paying the Event entry fee as well as the Challenge series single entry fee of 250,00 € VAT 0% ( inclusive name, number etc. stickers ) but will not be eligible to score series points. Single entry fee must be paid to every individual race separately. Also the entry fee of any single Event must be paid directly to PRCF / Challenge series. The entry fees of each Event will be paid according to the Event invitation to relevant Event organizers. 1.4.5 Challenge organization can invite so called VIP-drivers to participate in an Event without single entry fee but without paying the Series fee this driver will not be classified as started the race and score Series points. 1.4.6 Permanent annual competition numbers for the GT3 Cup Challenge Series will be provided by PRCF. The numbers will have two or three digits and the first digit will indicate the class. 1.5. Events 1.5.1 Calendar: The Porsche GT3 Cup Challenge Finland 2017 will be run during the following Events: 28-29.4. Bikernieki Circuit, Riga, Latvia GT3 Challenge, NEZ, SM 2-3.6. Ahvenisto Circuit, Hämeenlinna, FIN GT3 Challenge, SM 30.6-1.7. Auto24Ring, Pärnu, Eesti GT3 Challenge, NEZ, SM 25-26.8. Alastaro Circuit, Porsche Festival, Virttaa, FIN GT3 Challenge, NEZ 8-9.9. Alastaro Circuit, Virttaa, FIN GT3 Challenge, SM 1.5.2 The Organizer reserves the right to amend the above mentioned dates. The amendments will be published on the series official pages www.gt3cup.fi as well as by means of an official bulletin sent directly to all registered Competitors. 1.6 Series Points scoring 1.6.1 Championships for 2017: Drivers’ Champion, Class Champions, Team Championship. GT3 Cup Challenge is the Drivers’ Championship Series in the first place and the points will be awarded according to results by both in the Class and Overall classification and these points will be registered on a single score table which will determine the Champion. There will also be Class Champions and a Team Championship.

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1.6.2 In the Series there will be four competition classes but there will be only one Drivers’ Champion. 1.6.3 Only the Competitors registered in the Series and "the rental drivers" who drive with the same car can score points. Drivers' championship points are personal points, so the driver can change the class middle of the season. 1.6.4 There will be six Events / 12 rounds out of which 11 best results will be counted towards the Driver’s Championship points as well as the class points. 11/12 rule applies also to the basic calculation of drivers changing classes during the season. Possible disqualified round can’t be dropped off the final results. Porsche Motorsport / PRCF will declare the Driver who has collected the greatest number of points as the Champion. PRCF will declare the Drivers who have collected greatest number of points in each class as Class Champions. 1.6.5 The points average of the Drivers registered into a Team will be counted towards the Team Championship from each race. The solo driver score is cut in half. Team Drivers are registered at the same time, when they register to the Series. Also "the rental drivers" who drive with the same car can score Team points but they must not be an earlier nominee of any other Team. The large Teams can enter Drivers into sub-teams which collect points of their own. All 12 races count towards the Team Championship. The driver change has to be recorded in writing during the preliminary scrutineering of the Event at the latest. PRCF will announce the Team which has collected the greatest number of points as the Champion Team. 1.6.6 Championship points shall be awarded to drivers by Class for each Class in the Series for the fifteen ( 15 ) best classified finishers plus five ( 5 ) best overall, who fulfill the following stipulation: The Driver has completed at least 75% of the race distance and finished the race. Three or more Competitors per Class started Position 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th

Points 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 Only two Competitors started Position 1st 2nd 3rd

Points 20 16 12 Single Competitor per Class Position 1st

Points 16 Additional points for overall positions Position 1st 2nd 3rd 4th 5th

Points 5 4 3 2 1 1.6.7 Any race which is stopped by red flag, and not restarted: - 75% of race distance completed, full points awarded - 50-75% completed, 50% of points awarded - less than 50% completed, no points

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1.6.8 In case of equal number of points, the classification in Class will determine the final ranking. Only from those races with a minimum of three Competitors per Class in question - The winning driver shall be he or she who has scored the most number one finishes; - In case of a same number of number one finishes the driver with the most second place finishes will be announced the winner; - This process will repeat itself through all available finishing positions until a winner is produced. - In case the score remains unsettled, the winner will be the one with better overall result from the very last round of the season 1.7 Qualifying 1.7.1 There will be two qualifying sessions for each Event if there are more than 14 cars, otherwise it will be 20 minutes. 1.7.2 All cars take part simultaneously in the first session ( 15-20 min ) and the 10 fastest will continue to the second session ( 10 min ). The first session will determine the starting grid from 11th down for the first race of the Event. The times in the first session will be deleted for the ten best and will not be carried over to the second session. 1.7.3 The cars not continuing to the second session remain in the pitlane. The parc fermé rule is applied to these cars once the second session starts ( green flag / light ) and all work on these cars must cease and the cars taken into Parc Fermé area under supervision of the scrutineers. 1.7.4 In between the two qualifying sessions there is a 5 minute break which will start once the last car travelling at normal speed from the first session stops at the pit lane. The beginning of this break is shown at the pit exit by showing the 5’ signal board. All ten fastest cars remain in the pit lane waiting for the start of the second session. During the break the cars are not under Parc Fermé regulations and work may be carried out on the car but no refueling is allowed. The end of the break will be signaled by 3’ and 1’ signal boards and the start of the second session takes place when the green flag / light is shown. 1.7.5 The second qualification session will determine the starting positions 1-10 for the first Race. The parc fermé rule for the cars in the second session will begin once the checkered flag is displayed and all the cars must proceed directly to the Parc Fermé area without stopping at the pit lane. 1.8 The Race 1.8.1 Race distance / racing time: The Race distance / racing time will be provided in the individual Event invitation/rules. The race distance per Race is 15 laps. In Botniaring long loop or equal long track 12 laps. ( 20 min ). The duration of a Race can also be given as 20 min + 1 lap as long as the 15 (12) lap distance is covered on dry track conditions and displayed by a clock counting down as well as a display of the last lap for the competitors.

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1.8.2 Starting order: The grid for the first Race will be determined by the qualification times. The grid for the second Race will be determined by the fastest lap times of the first Race. 1.8.3 Start of the Race: Start procedure in the principle is a rolling start with the pole position on the side where the first bend will turn. (In case of a standing start the pole position will be on the side of the racing line). 1.8.4 A Competitor will be classified if he/she has covered at least 75% of the race distance and finished the Race. 1.8.5 After receiving the end-of-race signal, all cars must proceed directly to the Parc Fermé without any unnecessary delay, including the retired ones. 1.9 Podium ceremonies 1.9.1. The organizer of the Event will provide trophies for the three best Drivers overall of each Race 1.9.2 Challenge trophies will be presented to all class winners after each Race at a Podium ceremony organized by the Event organizer or the Challenge organization. During the Podium ceremonies as well as the VIP occasions, all drivers who had taken part in that Race must be present and the ones receiving trophies must wear their race suits. Absence requires the permission from both the Clerk of the Course and the Chief of the Challenge series. Sanction of an unauthorized absence is 300 €. It is recommended that all the team members use their Team-wear. 1.9.3 After the end of the Series season the three best of General Overall Classification, Classes and Teams will be awarded their trophies in the Challenge organization’s own occasion. Points counting towards class points will be points from the overall points scored in that particular class. 2. SPORTING REGULATIONS – Jurisdiction procedure 2.1 The jurisdiction procedure is regulated by the AKK Motorsport 2017 regulations and this set of Challenge regulations. In case of controversy over technical matters the Challenge regulations text will be considered authentic. The Zero-tolerance of alcohol includes all Team members working with the cars.

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3. TECHNICAL RULES Concept: Porsche GT3 Cup Challenge is a single make racing class created by Porsche Motorsport which has been designed to keep the racing fair and running costs low by minimizing possible changes in homologation of the cars and factory deliveries. Therefore all technical efforts against these principles will be sanctioned. 3.1 Introduction 3.1.1 The effort have been made to present the following technical regulations as easy to understand as possible. The Competitor has to adopt these regulations and follow them. Everything that is not specifically permitted is prohibited! In case of doubt – please ask! 3.1.2 All members of a Team must read, understand and obey these rules. The Competitor is responsible of all Team members and their behavior.

3.2 General provisions

3.2.1 The racing in GT3 Cup Challenge is between GT3 Cup cars with VIN-numbers, manufactured by

Porsche AG. The cars must be according to the original homologation and these regulations. 3.2.2 The Organization retains the right to accept or reject the cars for GT3 Challenge series. 3.2.3 The Competitor makes the Entry to the Class in which the car belongs to. The Organizer retains the right to transfer the car into another class which is considered to be more accurate, if need be. 3.2.4 When considering the acceptance of any car, the Organizer retains the right to take in account, whenever during the Season, the outlook and tidiness of the car (including the interior) and can reject any car if it’s appearance and tidiness might harm the reputation of the Series or be otherwise unacceptable. 3.3 Safety requirements 3.3.1 The cars must fulfill at least the requirements set by AKK and the Series regulations. Specific requirements on top of AKK regulations are written in the paragraphs of these Challenge regulations. Bear in mind that the Driver’s safety is the top priority. 3.4 General technical requirements and exceptions 3.4.1 The term ”Organizer” in these regulations covers PRCF or it’s nominee for example the Officials of AKK or a single Event organizer. In these regulations the term “original” when applied to component parts, shall mean the genuine "Porsche" component and must remain identical to the original manufacturers’ design specifications and be used in the manufacturer’s intended manner. Any item not specifically referred to in these regulations is required to be as originally fitted to the automobile. This means that the parts must be Porsche parts that were fitted originally in the car and which are listed in the Porsche GT3 Cup model spare parts catalogue. The change of parts from one year model to another year model car is prohibited unless specifically allowed ( for example the serial number changes made by Porsche Motorsport ). The modification of any original spare part, it’s assembly or the position of the assembly is prohibited. In order to secure the delivery of spare parts, all parts should be acquired from the official dealer authorized by the Challenge series organization.

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3.4.2 Each vehicle has been homologated as a specific model and it must fulfill these requirements always and in every situation, bar those modifications that have been specifically allowed in these regulations. 3.4.3 The Driver personally or the Competitor will be held responsible that the car that has been entered in any Event fulfills the requirements. In case of any doubt of acceptance, the enquiries must be made in writing to the Technical Officer of the Challenge Series organization, at least seven days before the Event in which the car is to be used. All unauthorized modifications as well as the vehicle being below the minimum weight will be sanctioned 3.4.4 Unless a deviation is specifically allowed, the car must remain completely original. All welding, cutting, treatment with machines, drilling holes, acid or other chemical treatment, aiming to modify vehicles mechanical characteristics, is prohibited. Every possible modification, which is not specifically allowed in these regulations, is strictly prohibited. 3.4.5 The limits for set up: Unless a deviation is specifically allowed, original parts in their original mounting points within their original set up limits must be used in all set up points of the car. Use of extra set up points within the original area or outside it, must not be done by modifying original parts or their assembly. The measurement tolerances are indicated in homologation forms and FIA regulations.

3.5 Scrutineering 3.5.1. Scrutineering will be done according to FIA/AKK Motorsport safety regulations, these Challenge regulations and instructions from Porsche Motorsport. 3.6 Compulsory Markings and Series identification 3.6.1 All the Challenge series decals and stickers must be in place before the initial scrutineering of each Event. Their location must be according to Series regulations. No ads or decals are allowed on glass panels ( with the exception of para. 3.14.1 ) No driver who does not have all the required decals in place may not participate the Event. The advertising of all other oil companies must be authorized by PRCF by 1.3.2017. PRCF will take the matter into consideration in case the company in question is a major sponsor. The decals of all other racing series, tyre manufacturers and automobile companies must be removed by the time of initial scrutineering, this does not apply to PCF- or PRCF- series decals unless they contradict with Challenge series. (Appendix 1) Such decals must not appear in a car together with the Challenge series logo and/or gt3cup.fi-text. 3.7 Eligible Automobiles 3.7.1 Classes: Class 1 996 GT3 Cup (- 2005) - older models can be updated by using parts from 996 GT3 Cup YM 2005 - this class will remain as long as eligible vehicles can be found Class 2 997 GT3 Cup (2005 ½ - 2009) Class 3 997 GT3 Cup (2010 - 2013) (3.8 l engine) Class 4 991 GT3 Cup (2013 - ) - Please note mandatory upgrades by Porsche Motorsport ( Appendix 7 ) NOTICE: PRCF will closely monitor the completion of current vehicles

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3.7.2 Chassis: The chassis fixture must remain original and all optional parts are prohibited. All changes to the chassis are prohibited. Class 4: There is a “rescue hatch” on the roof for driver assistance in case of an accident. It is prohibited to modify or hinder the hatch or the operation of the hatch locking system. ( This has to be taken under consideration when applying the car decoration stickers ) The lift up hooking points of the roof must be covered by means of the marker sticker for that purpose. 3.7.3 Rear spoiler: It is mandatory to use the standard rear spoiler and it’s brackets. The original layout must not be altered by any means. No modifications are allowed to the position of the spoiler or it’s brackets in comparison to the vehicle’s chassis. The restraint rubber pads of the engine cover must remain original. The attachment of the engine cover must be so tight that the rear spoiler angle can’t vary during the Race. 3.8 Engine 3.8.1 The engine must remain original. It is prohibited to make any unauthorized modifications to the engine. Only the use of PRCF nominated motor oil may be used (Mobil 1 0w-40). All Competitors registered in the Challenge series before 1.4.2017 will receive oils for the rest of the season with no charge. Classes 1-4: The exhaust system attachment bolts are allowed to be replaced by pin screws and nuts according to the photo. 4 x Pin screw M10 / 8.8 Part number: 999.062.170.02 4 x Nut M10 Part number: 900.377.011.01

3.8.2 In all engine repairs, the engine must be kept in original configuration by using only original parts ( note the number changes of parts especially Class 1 ). The engine air filter for Class 1 cars is free.

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3.8.3 Exhaust system: The entire exhaust system must be according to the parts catalogue for that particular model, also the interior parts and the exhaust pipe. It is allowed to use in all 996 models, as well as 997 MY 2005-2007 models, the complete exhaust pipes of 997 MY 2008-2009 models. It is mandatory to use the catalytic converters. In the older models the converters are within the rear mufflers and in the more contemporary models attached to the exhaust system. The whole exhaust system must consist of only from the parts belonging to certain model’s spare parts catalogue and a mixture of parts from various models is prohibited. It is allowed to enlarge opening of the original rear bumper for the exhaust pipe exit after the modification of the exhaust system. One must take care of the necessary heat shielding. Also the use of 997 MY 2008-2009 rear bumper including the heat shields is allowed during the modification. The muffler must be original with max noise level at 110 dB (A) according to AKK regulations. Class 4: It is approved to weld a connection rod between the tail pipes. The attachment of the corner mufflers according to the photo ( Appendix 6 ) GT3 Cup cars may use the “Carrera Cup” exhaust system ( without corner mufflers ) in case the noise levels are within the norm. 3.8.4 Cooling system: Class 1-3: It is allowed to install an electrical fan for one of the front corner radiators. It may be operated by either a heat censor or manual switch. The electrical circuit must be secured with a fuse and is permitted to include a separate relay switch. The main electrical switch must cut off all electrical functions of the car including this fan. The installation may not cause any other alterations in the car, for example the ECU or superficial appearance or the car. It is recommended to use the parts from a civil version that fit directly in place. Class 1-4: It is allowed to tape over the central radiator with well adhesive black tape, horizontally starting from the top. The side radiators are allowed to be covered (75%) by similar way only once the central unit has been completely covered up. 3.8.4.1 Coolant liquid: The use of Glygol in cooling system is STRICTLY PROHIBITED Use of water and anti-corrosion liquid only are authorized. For the anti-corrosion liquid only the Red Linen Water Wetter by the % instructed or Porsche anti-corrosion liquid 997.106.907.90. The complete cooling system must be rinsed thoroughly several times ( 6-7 ) in order to get all the glycol out. Be sure that the locking of all pipe/hose joints will be firmly attached. NOTE! The anti-corrosion liquids do not protect the water from freezing ( for example during long transport at winter ). 3.9 Engine Control Unit 3.9.1 Only the original Engine Control Unit ( ECU ) and it’s programming are permitted. The modification or reprogramming of the ECU are strictly prohibited. No additional electronics must not be fitted in between the ECU and the engine, the wiring loom must remain original.

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3.9.2 Fixing of Seals The ECU with it’s plugs can be sealed during the initial scrutineering. Tampering of the seals or breaking them during the entire season is prohibited. Only the Series officials or authorized Porsche technicians may break the seals which have to be replaced with fresh ones. Always before chassis repairs/ welding please contact the scrutineers of the Challenge series. 3.9.3 Inspection: The ECU can be confiscated and replaced by another unit randomly at will. The replacement ECU use is so short lived however that it has no meaning to the recording the cars total usage. The authorized Porsche technician and the Series officials may control and/or copy the ECU data at will. 3.10 Power train 3.10.1 Gearbox and gear change system: Only the PRCF authorized gearbox lubrication (Mobilube 1 SHC 75w 90) may be used. All competitors who have entered the Series before the third Event get the oils free of charge for the rest of the season. Class 1: Gearbox and gear change system must remain original fitted with the spare part number belonging to that particular model Class 2 and 3: It is permitted to use optional Quaife transmission with Cup-ratios and original differential and lock. The gear change system must remain original. Class 4: The Gearbox, hydraulics and gear change system must remain original fitted with the spare part number belonging to that particular model. In case the driver has to switch on the emergency mode of the transmission he/she must proceed immediately to the pits with extreme care. 3.10.2 Differential In all cases only the original differential and lock may be used, fitted with the spare part number belonging to that particular model. The set up of the lock must not be altered and the ramp angles of the differential lock must remain original. The pre set torque, as measured at the wheel nut must be 60-125 Nm. Class 4: The ramp angles and assembly of the differential lock according to Appendix 3. 3.10.3 Clutch: The clutch must remain original fitted with the spare part number belonging to that particular model. Class 1: It is allowed to fit a multi plate clutch from a more modern model multiple plate clutch. 3.10.4 Gear ratios: Class 1: It is permitted to fit the cars with 996 GT3 Cup gear ratios from any year model Class 2: Any gear ratio homologated to MY 2005 – 2009, 997 GT3 Cup car Class 3: Any gear ratio homologated to MY 2010 – 2013, 997 GT3 Cup car Class 4: Any gear ratio homologated to MY 2013- , 991 GT3 Cup The mixture of gear ratios between different year models is prohibited.

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3.10.5 Drive shafts Classes 1-3: The drive shafts and joints must resemble original ones by type and measurements. Those do not need to be original / bear the spare part number. Class 4: Only the original drive shafts and joints fitted with the spare part number belonging to that particular model are permitted. 3.10.6 Automatic throttle “Blipper”: Class 2 and 3: The installation of Porsche “Blipper” is permitted. Up to MY 2009 the “Blipper” is mechanical and does not require ECU reprogramming. In MY 2010 cars the bracket must be replaced by part 997.424.221.9C and the ECU must be reprogrammed by Porsche before the use of the car after “Blipper” installation. All MY 2011 - 2013 GT3 Cup cars are delivered with Porsche "Blipper" and throttle cable set. The car is already fitted with necessary holes for the bracket. 3.11 Wheel assembly and suspension 3.11.1 Wheel assembly can be set up within the tolerances indicated in the homologation document and the car’s manual, unless otherwise specified in these regulations. All original parts must be kept in their original installation positions. Class 4: Between the upper plate of the rear spring and the uniball, an extra 5 mm washer with fitting modification must be fitted on top of the original 3 mm washer, or these two replaced by a single 8 mm washer. The set up of the trailing bar fitted to front axle wishbone according to attached diagram:

3.11.2 The use of GT3 R / RS / RSR chassis parts and components like “Uniball” parts in replacement of original ones is prohibited. 3.11.3 Shock absorbers Classes 1 and 2: All liquid/gas shock absorbers which fit in place of original ones are allowed. All modifications to assembly points or assembly joints are prohibited. Adjustable shock absorbers are allowed. Additional reservoirs for shock absorber fluids are permitted but those must be fitted without altering any original parts. Class 3: The shock absorbers remain original, fitted with the spare part number belonging to that particular model. Class 4: The shock absorbers remain original.

Shock absorber, Front axle : 991.343.045.8A Shock absorber, Rear axle: 991.333.051.8A Bump stop, Front axle: 991.343.677.8A Bump stop, Rear axle: 991.333.677.8A (some with #: 0049 5111 0 250)

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3.11.4 Anti-roll bars Classes 1-4: Only the use of original Anti-roll bars is permitted. It is permitted to disconnect the anti-roll bars however all components must remain attached to the automobile

The anti-roll bars may be adjusted using the range of adjustment holes only. Class 4: In front and back the use of adjustment parts to compensate the horizontal play of the anti-roll bar is authorized. The horizontal play must not be less than 2 mm. Only these adjustments are authorized: 1mm / 991.343.761.8A 2mm / 991.343.761.8B 3.11.5 Suspension: Class 1 and 2: The springs are free as long as they are spiral springs made of iron. The number of springs must remain original. Class 3: The springs must remain original, fitted with the spare part number belonging to that particular model. Class 4: Only original springs may be used:

Main spring, Front axle 240 N/mm: 991.343.531.8C Main spring, Rear axle 260 N/mm: 991.333.531.8C Helper spring, Front axle 75/60/45: 996.343.537.90 Helper spring, Rear axle 80/60/60: 997.333.537.90

3.11.6 Wheel base The measuring points are from the midpoint of front hub to the midpoint of rear hub Class 1: 2357 mm + / - 10 mm Class 2 and 3: 2355 mm + / - 10 mm Class 4: 2460mm + / - 15mm 3.11.7 Size of Camber adjustment parts for lower wishbones: Class 1 and 2: Front max. 13mm rear max. 10mm. Class 3: Front max. 13mm rear max. 13mm. Class 4: Front max. 18mm rear max. 15mm. 3.11.8 The Uniball joints of steering arms and rear adjustment bars: Class 3: Steering rack and rear reaction bar Unibal joint spacer washers number, thickness and location according to the photos:

Front Rear

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3.12 Dashboard display and Data collection 3.12.1 In Classes 2-4 the Data collection system must be original a) The original dash display system must be used. b) The approved data loggers are listed in the spare part list belonging to that particular model. c) All data loggers must have the manufacturer’s approval to be used in the system. d) All other data loggers are prohibited ( including the shock absorbers data loggers ) No other data loggers, operational or not must be fitted in the car. e) Wireless telemetry ( via radio, infra red or other means ) to the car or from the car is prohibited. Radio connection between the driver and pit lane is compulsory ( 3.21.4 ) 3.12.2 Class 1, data collection system may be added. The data loggers must be according to 3.12.1. Lap time logger may be GPS-operational. 3.12.4 It is prohibited to connect any outside computer or equal devise to the car in between the qualifying practice and the parc fermé after the race heats. 3.12.3 The scrutineers may whenever during an Event check or copy the data-logger data. 3.13 Fuel and fuel system 3.13.1 The Fuel Only the use of normal 98 E5 pump fuel is accepted according to the AKK regulations. Always when the car is entering the Parc Fermé area, there must be enough fuel in the tank ( 3 L ), in order to take a sample from the sample valve of the car’s system. 3.13.2 Fuel system Fuel system and it’s operation must be original for that particular model. The fuel tank must be either original or FIA approved safety tank for that particular model with approval stamps according to AKK regulations. Class 1: Also the tank for 996 model, equal to the original is approved. Class 1-3: The quick fueling system intended for the particular model with either the original tank or FIA safety tank is approved. 3.14 Glass panels and ventilation 3.14.1 Glass panels All glass and plastic window surfaces must remain original. According to GT3 Cup Tech Info 18/2006 the use of heated windshield is approved. The installation of “rip off” films for the windshield is approved: - in case it is approved for the Race by Series scrutineer - it will be removed immediately in case the Series scrutineer asks for that ( the film is not appropriately installed or there are excessive number of air bubbles in between ) It is permitted to cover the rear side window openings with clear tape, only when the automobile is fitted with wet weather tyres.

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Class 4: Approved plastic windows: Left door window: 991.542.511.8B Right door window: 991.542.512.8B Left rear side window: 991.543.511.8A Right rear side window: 991.543.512.8A Rear window: 991.545.111.8A NOTE The mandatory upgrade

3.14.2 Ventilation: Only the original cooling duct and hose for the driver is allowed. No modification in the ventilation system is allowed even when using the heated windshield. Classes 3 and 4: The ventilation ducts must remain as originally supplied except that it is permitted to cover the front bonnet ventilation duct on driver’s side with clear tape. 3.15 Brakes 3.15.1 Classes 1-3: Only the original Porsche Carrera Cup system including the main brake cylinder for that particular model with steel brake discs is approved. Class 1: ABS is approved. The cars may be fitted with ”floating” front discs made of steel but the original brake calibers with their attachments must be used. release Classes 2 and 3: The main cylinder for front brakes orange color, green for rear. Approved brake pads are: OEM Porsche Carrera Cup pads, Pagid black RS-14 or Ferodo DS 1.11 (W). Class 4: Only the original brake system with steel discs intended for that particular model is approved. Main cylinders: ( blue )

Front and rear axle: diameter 17.8 mm, part number: 991.355.170.8C Brake calibers: Front Left: 991.351.427.8A Front Right: 991.351.428.8A Rear Left: 991.352.427.8A Rear Right: 991.352.428.8A Front brake discs: 380 mm/32 mm: Front Left: 991.351.105.8A Front Right: 991.351.106.8A Rear brake discs: 380 mm/30 mm: Rear Left: 991.352.107.8A Rear Right: 991.352.108.8A Brake pads: Front: 991.351.942.8A Rear: 991.352.942.8A

Underneath each brake caliber there must be a release spring which must not be modified or covered by any means:

Front axle: 991.351.963.8A Rear axle: 991.352.963.8A

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3.16 Seat and seat belts 3.16.1 Seat: Classes 1-3: The use of original seats and installation rails is recommended. However use of replacement seats is authorized as long as they fulfill the following requirements: - only FIA approved seat and installations, the seat with FIA certificate sticker - the seat manufacturer approves the use with HANS - no modifications to the floor is authorized and the use of original installation holes is mandatory in every case The approval period according to the AKK regulations ( 10 y ), however the FIA approval period ( 5 y ) is recommended. The rails and side adapters must remain original or have the manufacturers approval to be used with that particular seat. The additional strengthening parts for seat fixture provided by Motorsport must be welded in the car body unless they do not already exist (GT3 Cup Tech Info 13/2006). Class 4: Only the use of original Recaro seat, with the spare part serial number for that particular model is authorized. The rails and side adapters must remain original with the spare part serial number for that particular model. No modifications to the floor is authorized and the use of original installation holes is mandatory in every case. No modification to the seat frame and cushions/upholstery is authorized except for the replaceable cushions which can be changed. The cushions must remain original Recaro ones intended to be used with that particular seat. Change, modification or removal according to separate instruction ( Appendix 7 ) The approval period according to the AKK regulations ( 10 y ), however the FIA approval period ( 5 y ) is recommended. Classes 1-3: If need be, the seat can be installed max 30 mm lower according to the following instructions:

The original locking mechanism of the rails is removed and the seat rails swapped from left to right and vice versa. The direction of seat adapters L-plate foot is retained so the seat will sit further out of the roll cage door bars.

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In the new installation the rail release locks will face out and they must be operated separately.

One may drill new 8 mm holes max 30 mm lower ( towards the bottom ) in the side adapters.

Installation of one washer per fixing bolt is approved. Washer’s max thickness 5mm, outer

diameter 30 mm and hole 8 mm.

3.16.2 Seat belts: Classes 1-3: The use of original seatbelts with the spare part serial number for that particular model is recommended. However use of replacement seat belts is authorized as long as they fulfill the following requirements: - FIA approved 6-point safety harness properly fitted - FIA certificate in each part of the harness - the seat belt manufacturer approves the use with HANS - the lap belt adjustment buckle is not carrying over the seat opening The approval period according to the AKK regulations ( 10 y ), however the FIA approval period ( 5 y ) is recommended. Class 4: Only the use of original seatbelts with the spare part serial number for that particular model is authorized. The approval period according to the AKK regulations ( 10 y ), however the FIA approval period ( 5 y ) is recommended. 3.17 Weight 3.17.1 The minimum weight for each class is including the driver with all racing gear. The minimum weight for each class according to APPENDIX 8. 3.17.2 Driver’s weight The driver must present himself/herself at the weighing during the initial scrutineering of the Event with all race gear ( dry and clean ). This official driver weight will be rounded up to next full kilogram, i.e. if the scale shows 88,3 kg for the driver with racing gear, it will be rounded up to 89 kg. Once the scrutineer has recorded the driver’s weight, this will be considered to be the driver’s official weight during the entire Event. After this, only the car will be weighed, the minimum racing weight of which will be announced at the initial scrutineering. During each scrutineering session the driver must have all necessary race gear. The driver must not leave the Parc Fermé area without permission from the scrutineer. ( Note! Not even to the Podium Ceremony )

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3.17.3 Additional ballast: 3.17.3.1 According to the AKK regulations. The ballast weight must be installed on the passenger’s side floor using the seat rail installation points. Classes 1-3: Additional ballast must be fixed on passenger area floor using the seat installation points. The ballast can additionally also be bolted through the floor. Installation of the ballast weight elsewhere is prohibited. Class 4: Only the original parts are authorized to be used for installation of the ballast to the passenger’s floor according to the attached photo. Ballast parts: 997.504.848.00 / 997.504.848.01 / 997.504.848.02

3.17.3.2 The original structure of the car must not be lightened and total weight replaced by ballast. 3.18 Wheel rims 3.18.1 Only the use of original Cup-car wheels is authorized. Classes 1-3: BBS central lock 3-piece Classes 1 and 2: With wet weather tyres the use of provisional wheels is approved if their width and ET-figure fully comply with the original wheel and the tyre supplier approves their use with the tyres in question. Class 4: BBS central lock mono bloc. 3.19 Tyres 3.19.1 The tyres to be used during the series according to Appendix 4. In order to provide smooth supply, the tyres should be obtained from the Challenge series authorized official tyre supplier. Especially at the later part of the season it is important to place the tyre orders well beforehand. 3.19.2 During the official Event only the use of approved tyres is authorized. 3.19.3 If the race has been officially declared to be ”wet race” before the start, the drivers may only use the approved wet weather tyres unless the Race Director gives other orders. The same applies to the “wet” qualification.

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3.19.4 Minimum tyre pressures according to the tyre suppliers recommendation and the maximum camber as stated in the car’s manual. Use of normal pressurized air only is authorized to inflate the tyres. 3.19.5 All sorts of tyre heating is prohibited as well as cutting and other modification of slicks and wet weather tyres as well as chemical treatment of the tyres. Use of automatic tyre pressure regulators is prohibited. 3.19.6 All efforts to modify the tyres or use of optional tyres is prohibited. 3.20 Ground clearance 3.20.1 Definition: The minimum ground clearance of the ready-to-race vehicle ( including possible ballast with slick tyres at 2,0 bar +/- 0,1 bar air pressure ) must not be less than the specified dimension at the specified measuring points, at any time of the Event. The ground clearance may be changed within the existing adjustment range as long as the minimum clearance is respected. 3.20.2 Measuring method: The ground clearance is measured from the car without driver. The measuring points of the car according to Appendix 2. The measurement at the Event scrutineering is decisive even if the reading might be different to the Competitor’s own at home garage. Even then the reading must not be below approved minimum. 3.20.2.1 Classes 1-3: For the entire duration of the racing Event the ground clearance of the front axle is to be a minimum of 68 mm. The measuring points at the front axle are the mounting bolts (M14x120) of the cross member / bodywork in relation to the reference surface. In Class 3 only there must be a 8 mm washer under the bolt. ( Not in Classes 1 and 2 ) The ground clearance at the rear axle a minimum of 112 mm. The measuring points for the rear axle the machined, in driving direction rear surface on the side section of the rear axle in relation to the reference surface.

3.20.2.2 Class 4 The ground clearance of the front axle is to be a minimum of 78 mm. The measuring points at the front axle are the mounting bolts (M12x105) of the cross member / bodywork in relation to the reference surface. From the MY 2013 the 10 mm washer 991.341.641.8A has to be removed from under the bolt and the bolt itself to be replaced with bolt 999.072.864.01 (M12x105). From MY 2014 on, there are no more washers. The ground clearance at the rear axle a minimum of 100 mm. The measuring points for the rear axle the machined, in driving direction rear surface on the side section of the rear axle in relation to the reference surface.

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3.21 Steering system Classes 1-3: The steering wheel can be either original or optional racing steering wheel if it is round with uniform rim. Quick release mechanism is obligatory and the hub extension approved. Class 4: The 8,5 mm washers (991.341.613.8A) must be used with the steering rack installation. The steering wheel with its mounting must remain original and the use of hub extension is prohibited. The longitudinal and vertical adjustment of the steering column must remain original. The bolt 999.073.252.09 of track rod may be replaced by bolt 900.378.030.01. Rubber element (8K0.611.797.E) must be fitted to support the hydraulic tubes on the steering rack (991.347.775.8A) according to the photo.

3.22 Miscellaneous 3.22.1 Towing eyes: The towing eyes provided to the car must be properly installed in front and rear. 3.22.2 Cameras and information plate: The securely installed in car cameras are authorized. There must be a separate metal wire to secure the camera. The Organizer is authorized to install it’s own camera in the racing car or use the Competitors’ footage in order to promote the Series. The Organizer must be able to copy the memory cards of the cameras immediately after each race. The information plate must be attached to the dashboard of every car visible to the camera mounted to the roll cage. The plate and the info sticker will be provided to the Competitors. ( Appendix 1 ). Outboard cameras are approved once they are securely installed. They must be small and unnoticeable, close to the bodywork and not to extend outside the car profile seen from above. The camera must not be mounted on pedestals and must not extend more than max 50 mm from the installation surface.

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3.22.3 Extinguisher system The extinguisher cell and system may be inspected and serviced by a company authorized by the manufacturer, Authorized companies with their contact information are listed in the ASN ( AKK ) pages. The manufacturer nominates also the inspection/service schedule. The inspection of the pipes, wires and activating buttons is the responsibility of the Team and must be carried out before the start and after the race season. Extinguisher tank must be secured by an additional fix which prevents the tank from sliding out between the installation brackets (9F0.880.909). 3.22.4 Radio communication: The radio connection between the driver and pitlane is compulsory. The connection must be operational during the qualification and the races. All problems and possible breakage of the connection must be immediately reported to the Series scrutineer. Lack of radio connection may hinder the track access. The driver may use either earplug phones or so called rally model receiver/microphone set In case the helmet set is used, the set and it’s installation must be approved by the helmet manufacturer. The proof from the helmet manufacturer to be presented at the scrutineering The communication radio must be installed in the car so it will not get loose in any driving situation. The radio communication between drivers ( even via the pitlane ) is prohibited. The Teams/drivers themselves are responsible that each driver is using an individual radio frequency, even inter team vise. Telemetry is prohibited. Only spoken communication through the radio is approved. No other electronic device is authorized to be installed in the car’s electronic systems. Classes 2-3: The installation of a radio with transmitter is authorized only via the black 12 pin plug located on the right hand side of the central tunnel. Pin 1 = 30 (+), pin 2 = 15 (+), pin 3 = 31 (-). All other methods are prohibited.

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Class 4: The installation of a radio with transmitter is authorized only via the grey 4 pin plug located on the right hand side of the central tunnel. This will connect also the tangent button in the steering wheel.

3.22.5 Battery: Classes 1-3: The battery must be identical in size with the original, with original installation and sit in the original position. Lithium Polymer –type batteries usage is strictly prohibited. The contact poles must be protected in order to avoid short circuits. Insulation tape alone is not a sufficient method. Class 4: Only the original battery with spare part number belonging to that particular model is authorized. The battery must sit on it’s original position with original brackets. 3.22.6 Lights: All light fixtures must remain original ones belonging to that particular model. In order to prevent glass splinters, it is recommended that all glass surfaces of the lights are protected by colorless clear tape. In all classes the additional brake light must be connected to work as a rear fog light and the rear fog light in the rear light panel disconnected (GT3 Cup Tech Info 5/2010). 3.22.7 Transponder: The timing transponder must be installed in the front wheel arch, immediately behind the hub line. 3.22.8 Drinking system: Drinking system is allowed without a pump, as long as the bottle has been securely fixed so it will not fall into the driver’s footwell at any situation.

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APPENDIX 1 – Location of mandatory stickers and decals a) All cars participating Porsche GT3 Cup Challenge Finland –Series must carry the decals and stickers according to the plan below, on exactly correct locations. ( See separate instruction ) The Organizer will provide one complete set for each Competitor per season, including name, number, cockpit info plate sticker and Series advertising stickers as well as the cloth emblems. Additional sets and single stickers will be charged separately from the Competitor. 1. Advertisement (Logo 5) on top of the windshield (h 160mm) racing number on right hand side 2. Door number with Challenge series emblem, upper front part of the door ( 300 x 300 ) upper corner parallel to door edge. 3. A-pillars: gt3cup.fi 4. Advertisement ( Logo 4 ) above door number, centralized ( h 100 x w 400 ) 5. Advertisement ( Logo 2 ) below door number, centralized ( h 80 x w 300 ) 6. VM-logo ( Vauhdin Maailma ) to replace registration plates 7. Michelin-text, curved one in front ( h 70 x w 500 ) and rear above the registration plate ( h 60 x w 300 ) plus “Michelin-man” figure behind the rear wheels 8. Mobil 1 –logo low at front corners ( h 65 x w 300 ) 9. Advertisement ( Logo 1 ) front corners above Mobil-ad ( h 55 x w 250 ) 10. Advertisement ( Logo 3 ) low in front of rear wheels ( h 120 x w 120 ) 11. GT3 Cup / PORSCHE GT3 Cup model decal according to the spare parts manual 12. Yellow race numbers for windshield and rear window, black background in windshield (h 150 mm) 13. Yellow race numbers for rear side windows ( h 110 mm ) ( black background ) 14. Driver’s surname in white for windshield, back and side windows ( h 70 ).

15. Dashboard info plate w 200mm x h 100mm

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b) Team-wear All adult members of each Team must wear, during the entire event uniform shirt or coat, approved by the Challenge Organization, with Challenge series logo incorporated with sponsors emblem, above left breast. It is recommended that even the children at paddock have similar wear or at least some Porsche-inspired clothes. The Teams have an opportunity to purchase through the Challenge Organization for Team members Technical T-shirt and official coat, on which the Teams have opportunity to print their own Team logo as well as their sponsors’ logos. The Challenge Series logo with series sponsor’s logo must appear on left breast of every team mechanics overalls and other wear in the pit lane and paddock area. The same rules apply to all Team wear as to the car’s advertisements ( see 3.6 Compulsory decals and stickers ) c) Driving equipment All drivers must wear the Challenge series logo with the sponsor’s logo over the left breast of their racing suit. Below this must be Michelin logo. Close to shoulders on each sleeve there must be the Michelin-figure ( not in the drawing ) Team’s own official logo over the right hand side breast.

Fixing the emblems must be with Nomex-thread and the outmost fabric only. The hot-press of the emblems is allowed by the suit manufacturer only. The certificate of which must be presented at the scrutineering. The same rules apply to all racing gear as to the car’s advertisements ( see 3.6 Compulsory decals and stickers ) d) Transport and service vehicles All service and transport vehicles at the paddock must bear the Challenge series logo with the sponsor’s logo at the upper rear corner of each vehicle and trailer. ( Alternative location pending approval ) The stickers will be provided in both “small trailer” and “semitrailer” size.

The same rules apply to all vehicles at the paddock as to the car’s advertisements ( see 3.6 Compulsory decals and stickers ) Use of PORSCHE-text and Porsche-emblem on transport and service vehicles is prohibited.

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APPENDIX 2 – Ground clearance Classes 1-3: Minimum rear axle ground clearance 112 mm measuring point:

Front axle ground clearance 68 mm measuring point:

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Class 4: Rear axle minimum ground clearance 100 mm measuring point

Front axle ground clearance 78 mm measuring point

Floor plate front corner to be cut according to the photo.

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APPENDIX 3 – Class 4 Differential lock The ramp angles of the differential lock according to the photo.

Assembly of the differential lock according to the attached photos

MY 2013

MY 2014-

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APPENDIX 4 – Tyre regulations

Tyre regulations 1) During the entire Event, including the free practice and warm up session, only the use of approved Michelin Porsche Cup racing tyres, which are intended to that particular model by size and compound, is authorized 2) In order to secure the tyre service, all tyres should be obtained from the official tyre supplier appointed by the Challenge series. 3.1) Classes 1 and 2 Michelin slick tyres for dry weather: Front 25/64-18 (Porsche Cup N2) Rear 27/68-18 (Porsche Cup N2) Michelin wet weather tyres for wet conditions: Front 24/64-18 (P2L ) ( Old P2G may be used during 2016) Rear 27/68-18 (P2L ) ( Old P2G may be used during 2016) 3.2) Class 3 Michelin slick tyres for dry weather: Front 25/64-18 (Porsche Cup N2) Rear 30/68-18 (Porsche Cup N2) Michelin wet weather tyres for wet conditions: Front 24/64-18 (P2L ) ( Old P2G may be used during 2016) Rear 30/68-18 (P2L ) ( Old P2G may be used during 2016) 3.3) Class 4 Michelin slick tyres for dry weather: Front 27/65-18 (Porsche Cup N2) Rear 31/71-18 (Porsche Cup N2) Michelin wet weather tyres for wet conditions: Front 27/65-18 (P2L ) ( Old P2G may be used during 2016) Rear 31/71-18 (P2L ) ( Old P2G may be used during 2016) 4) All tyres are fitted with individual serial numbers at the factory and these numbers will be used as follow up record numbers. 5) During the entire Event the Competitor is allowed to use authorized tyres as follows: - for qualification and races a maximum of two sets of slick tyres, one of sets must be used ones, all tyres must be recorded in the follow up form - the number of approved slick tyres during free practice and warm up session is unlimited - those tyres do not need to be ones in the serial number follow up form - the use of tyres during free practice or warm up do not qualify as making them “used ones” for the follow up form. - number of wet weather tyre sets is free Use of mixture of tyres ( slick and wet weather tyres simultaneously ) is prohibited 6) Before the qualifying session the Competitors must provide the scrutineers with the completed tyre follow up form in which the numbers of slick tyres have been CLEARLY marked set by set, which are to be used during qualification and races.

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7) The follow up form with official’s signature applies only to the race starts. During free practice, warm up and qualification there will be no signatures. No record for the wet weather tyres will be kept. 8) The aim for serial number follow up is to make sure that the used tyres fulfill the requirements for the race distance.

9) The tyre is considered to be used once it has been used for an entire race distance (min. 75 % of the race distance) in a race and the Official has recorded it in the follow up form. It is the Competitor’s own responsibility that the tyres marked as used ones fulfill the above mentioned requirement.(Tyres used only during practice sessions do not fulfill this requirement). 10) As there are no used tyres as prescribed in these regulations, all Competitors / Drivers entered in the series and paid the fee, are authorized to use two sets of new slick tyres for their first Event of the Series ( even if they start participating after the first Event ). For the Competitor entered in the Series who has not taken part in a single start with slick tyres ( because of wet track for instance ), the permission will be carried over to the following Event. However if the Competitor finishes a race with slick tyres, those tyres will become used tyres for the next race, for which the Competitor can use only one set of fresh slick tyres. Competitor taking part in a single Event only is authorized to use one set of slick tyres only per Event. 11) In case of a tyre damage, the damaged slick tyre can be replaced by a tyre from another set recorded to be used during the Event, without sanctions. Competitor taking part in single Event only is allowed to replace the damaged single slick tyre with a tyre which has not been recorded in the follow up form. In case the driver needs a pair of tyres, the penalty will be 10 second addition to his/her race time in next start. Any new slick tyre damaged during the qualification may be replaced by another new one before the race start without sanctions. In case there is need to replace a pair of tyres the sanction will be 10 second addition to driver’s racetime in first start. A used tyre damaged during the qualification may be replaced by another unmarked used one without sanctions. In case a pair of used tyres is needed for replacement the sanction is 10 second addition to driver’s race time in first start. The replacement of a damaged tyre is always pending the scrutineer’s approval. Also the serial numbers of replacement tyres must be recorded in the follow up form. 12) Any slick tyre which has been damaged and replaced during the race due to tyre damage must be taken with the car to Parc Fermé and presented to the scrutineer. After this the damaged tyre must be taken to Michelin tyre expert for inspection. All other deflated slick tyres on their wheel rim must be provided to Michelin tyre expert for inspection, in order to find the leaking spot. In case the wheel rim is causing the leak, the wheel will be repaired or the tyre installed on a new rim, the leaking rim does not authorize use of new tyre.

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13) During the race a new slick tyre is authorized to be replaced by another new one in case it has not been used for one entire race. In case there is a need to replace a pair of tyres the sanction will be a 10 second addition to the race time of the following race. The serial number of the replacement tyre must be recorded in the follow up form by the scrutineer. 14) In case a new slick tyre has been taken to replace a tyre belonging to used tyres set during a race, the new tyres set can be completed by replacing the tyre used during the race, with another new one for that set. The serial number of the replacement tyre must be recorded in the follow up form by the scrutineer. 15) It is also possible to return the replacement tyre ( new ) to it’s original set of new slick tyres without obtaining a new tyre. 16) No single tyre failure or borrowing a tyre from another set for replacement do not authorize the use of a pair of fresh tyres without sanctions. 17) After the race the Official will sign for those tyres used during the entire race ( 75% ) in the follow up form. The driver must not exit the Parc Fermé area without Official’s permission. 18) One copy of the follow up form is with the Official from the initial scrutineering on. The other copy is with the Competitor. The forms will be filed by the Serial scrutineer. 19) In all other cases, not regulated by this set of regulations, please contact Challenge Series scrutineer who will make the decision. 20) The tyre follow up record form attached ( Appendix 5 )

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Appendix 5: Slick tyre follow up record

Tyre Tracking 2017 Slick Tyres

Porsche GT3 Cup Challenge

Dates Race Track

Competitor's name race number

Tyre numbers written before qualifying

New (N) Official makes an entry in Park Fermé

Used(U) Tyre Numbers 1. Start 2. Start

N / U Name of Official Name of Official

Signature of the Competitor or Team Chief

New tyre numbers after a puncture

New Official makes an entry in Park Fermé

Tyre Tyre Numbers 1. Start 2. Start

(N) Name of Official Name of Official

N

N

N

N

If the tyre has been driven whole competition start (Min.75%) so in Parc Ferme Official record of the use of each tire.

The form must be returned completed to the Official before the Qualifying. The forms are stored by the Organization.

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APPENDIX 6 – Mufflers and heat shields Class 4: The installation of corner mufflers and heat shield according to the photo:

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APPENDIX 7 – Class 4, updates and changes Mandatory upgrades for different year model 991 GT3 Cup cars Technical Modifications of 911 GT3 Cup (Type 991), MY 2013 1. Automatic fuel cut-off valve The fuel system must be supplemented by the automatic fuel cut-off valve (part number: 991.201.321.8A) and the adapter (part number: 991.201.581.8A) necessary for installation as well as the front fuel line (part number: 991.201.295.8D). 2. Transmission support The transmission support must be replaced by the current MY 2014 version with the following part scope: 1 x 991.375.137.9B Transmission bracket 2 x 999.507.075.40 Clip 4.0–12.0 2 x 900.378.332.01 Hexalobular bolt M8x16 4 x 900.377.011.01 Hexagon nut M10 1 x 991.375.114.03 Longitudinal reinforcement 1 x 900.385.164.01 Hexalobular bolt M12x1.5X140 1 x 999.086.009.02 Hexalobular nut M12x1.5 1 x 999.072.083.01 Hexagon bolt M10x58 3. Tie rod The tie rod must be replaced on both sides by the current, longer version (part number: 991.341.031.8C). 4. Rear-axle cross member The rear-axle cross member must be replaced by the latest cast aluminum version (part number: 991.331.261.8C). 5. Brake pads at front and rear The brake pads must be replaced by the new pads of the ‘Sprint’ type both at the front (part number: 991.351.942.8A) and at the rear (991.352.942.8A). 6. Mirrors The exterior mirrors of the vehicle must be equipped on both sides corresponding to the current, aerodynamically adapted version: 1 x 991.731.020.8A.C9A AS mirror, right 1 x 991.731.019.8A.C9A AS mirror, left 1 x 991.731.048.03 Mirror glass, right 1 x 991.731.045.02 Mirror glass, left 7. Ignition system The previously used spark plugs (999.170.208.90) must be replaced by spark plugs with the part number: 991.602.201.8A.

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8. Rain light The previously used rain light must be replaced by the latest version with improved visibility. The rain light is integrated in the rear apron for this purpose. The following part scope must be replaced: 1 x 991.505.871.90.1E0 Upper trim surround without 3rd brake light 1 x 991.631.551.8B Rain light 1 x 991.505.411.8C.TM2 Rain light bracket 1 x 991.612.857.8B Connector, vehicle side 9. Tank The fuel system must be replaced by the latest version of MY 2014 with the following parts: 1 x 991.201.301.8C Holder main pump 1 x 991.201.697.8D Cable loom fuel tank Mandatory updates for every class: Tech. Info 03/2013 Fuel rail pressure adapter Tech. Info 03/2014 Code pins engine bay connectors Tech. Info 06/2014 IPS hardware change Tech. Info 09/2014 Air filter housing pins Tech. Info 09/2014 Snap ring on the joint flange Tech. Info 03/2015 150A generators pulley Tech. Info 04/2015 Rear window fixation Tech. Info 05/2015 Thermostat Tech. Info 08/2015 Rubber boots of the drive shaft Tech. Info 10/2015 Fire extinguisher line 2 Tech. Info 11/2015 Filter cable loom (correction: part must be 991.612.763.8A) Additional mandatory changes: - Steering lines

- Fuel cell (electrostatic discharge protection) (FIA Regulations)

NOTE! There are also some updates for MY 2015 cars, those are not mandatory ( incl. fuel tank, hydraulics, gearshift, steering rack…. ) but these updates are strongly recommended and will add the durability and performance of the car. Some of these upgrades are extremely expensive and should be considered before purchasing the vehicle. Generally there will be complete upgrade sets available for earlier year models.

02.02.2015 Upgrades reported: -Cosworth Components -Enginen Control Unit -Thermostat -Wheel Bearing Fixation -Window Fixation

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Upgrades already done from MY 2015 to 2016: -complete shifting system ”Megaline” -filter cable to the electrical system (991.612.763.8A) -rear strut tower nut -new bracket for water pipe -shifting element (Rolex) -ICD and IPS setups Recaro seat cushions 991 The seat cushions marked with yellow can be changed, modified or removed according to the instruction. In case cushions made by other manufacturer than Recaro all markings, embroilements etc must be removed.

Seat The adaption of the seat by removing or adding of original Recaro seat padding is forbidden in the areas of the seat shown in green color on the illustration. Any modification of the seat padding shown in green color is strictly prohibited. The use of the different sizes paddings is allowed, also in the areas shown in green color, as long as they are not modified. An upholstery in the bottom part of the seat on top of the paddings shown in green (see illustration) as long as the original padding is not modified or removed. An upholstery of the areas shown in yellow color on the illustration is allowed by either using original Recaro paddings or using a foamed seat insert, as long as the insert is made of fireproof material, colored in black and its maximum thickness at any point does not exceed 50 mm in size. The preferred supplier for padding components is the seat manufacturer (Recaro). The original seat mounting (seat rails and bracket) must be retained and must not be modified.

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APPENDIX 8 – Weights 1) Minimum weight for Class = car and driver with racing gear Minimum weight for each car = car ready to roll Minimum weight for Class Minimum weight for car Class 1) 996 MY -2005 1230 kg 1150 kg Class 2) 997 MY 2005 ½ - 2007 1240 kg 1150 kg

997 MY 2008 - 2009 1255 kg 1170 kg Class 3) 997 MY 2010 - 2013 1295 kg 1200 kg Class 4) 991 MY 2013 - 1325 kg 1225 kg 2) During the Event, only the car will be taken to scales. The calculation weight will be used = Class weight minus driver’s weight Even then the car weight must not be less than the minimum classified car weight The reading of the scale used at the Event is decisive even if the reading might be slightly different to the one the Competitor had at home garage. The Competitor has a possibility to check the reading during a voluntary weighing until the beginning of the qualification. 3) In case the car is found to be below the minimum during the weighing, the Chief scrutineer will be summoned to be present. The car will be weighed again three (3) times, the scale reading zeroed between each try and the tyres of the car located dead center of the scale elements. The final weight of the car will be the average of these three results. In case the final reading is below the minimum, the scrutineers will present the case to the panel of Stewards. 4) The tolerance of the scales at the Event scrutineering will be +/- 2 kg during the weighing