RENNtech Porsche 997 GT2 ECU Upgrade (523 HP / 560 LB-FT) mercedes-benz-cls-class--219---2006-2011--cls-550-esr9083602 3 Series COUPE' (E92) 335

3 Series COUPE' (E92) 335 i 3

the Evolution Race Line is as striking to look at as it is use

Our intermediate ECU tune increases performance from 429 HP and 516 lb/ft torque up to 500 HP and 625 lb/ft at the crank

The tail pipes are the most visible part of the exhaust system

RENNtech Porsche 997 GT2 ECU Upgrade (523 HP / 560 LB-FT) mercedes-benz-cls-class--219---2006-2011--cls-550-esr9083602 3 Series COUPE' (E92) 335RENNtech Porsche 997 GT2 ECU Upgrade. Up to 562HP and 575LB FT. Gains: +40HP & 74LB 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 proprietary tuning