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S8 (D4/4H)
Exhaust Valve Module: The EVM allows you to fully open the exhaust valves of the AMG Sport Exhaust
The CPC upgrade increases torque limits and allows the engine to operate without the restrictions set by the stock/factory CPC unit
Audi S3 (8P)
CLASS E SW (S 210) 240 V6 (HP: 170 | Year: 99 > 00)
RENNtech Porsche 997 Carrera (3.6L DFI) ECU Upgrade (365 HP / 300 LB-FT) renntech-merchandise S8 (D4/4H)RENNtech Porsche 997 Carrera (3. 6L DFI) ECU Upgrade. Up to 365HP and 300LB FT. Gains: +20HP & +12LB FT Our proprietary Porsche ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid 1980's, though our
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