RENNtech Porsche 997 GT2 ECU Upgrade (523 HP / 560 LB-FT) mercedes-benz-slk-class--171---2004-2010--slk-350-esr6719359 826 LB-FT @ 3

826 LB-FT @ 3

RENNtech Motorsports Mercedes-AMG GT4 Artwork Back

8 GT3 (HP: 435 | Year: 09>)

The RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band

Sport Muffler

RENNtech Porsche 997 GT2 ECU Upgrade (523 HP / 560 LB-FT) mercedes-benz-slk-class--171---2004-2010--slk-350-esr6719359 826 LB-FT @ 3RENNtech 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