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but also has the option of a lower sound level when the valves are closed
Exhaust Valve Module: The EVM allows you to fully open the exhaust valves of the AMG Sport Exhaust
RENNtech SLR package 2 contains our proprietary ECU
This set of wheels has been exclusively designed and weight optimized for the 212 - E63 AMG
RENNtech Porsche 997 Carrera (3.6L DFI) ECU Upgrade (365 HP / 300 LB-FT) renntech-merchandise but also has the optionRENNtech 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