RENNtech Porsche 997 Turbo ECU Upgrade (523 HP / 560 LB-FT) porsche-panamera--970---2011-2015--gts-esr2383908 C 63 AMG S (C205

C 63 AMG S (C205 | M177 | 4

All RENNtech HSMs are adjustable via USB using either Windows or Android OS

installs with 3M double-sided automotive tape

CLASS E (W 211) 500 V8 [2 Filters Required] (HP: 306 | Year: 02 > 06)

dB  81 at 3750 rpm  83 at 3750 rpm + 2

RENNtech Porsche 997 Turbo ECU Upgrade (523 HP / 560 LB-FT) porsche-panamera--970---2011-2015--gts-esr2383908 C 63 AMG S (C205RENNtech Porsche 997 Turbo ECU Upgrade. Up to 523HP and 560LB FT. Gains: +50HP & 103LB 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