RENNtech Porsche 997.2 Turbo (3.8L) ECU Upgrade (500 HP / 480 LB-FT) maybach-57---62--240---2002-2012--5-5-l-v12-biturbo-esr4717095 The RENNtech Sport Muffler System

The RENNtech Sport Muffler System for the W205 - C 63 AMG Sedan comes with an integrated valve system and utilizes the electronic OEM actuators

6 GT2 (HP: 530 | Year: 07>)

With the proprietary RENNtech ECU+ Tuning the W205 - C 63 AMG gains up to +56 HP and +107 LB-FT

Up to 625 HP and 745 LB-FT

and to return to factory settings by pressing Button 2

RENNtech Porsche 997.2 Turbo (3.8L) ECU Upgrade (500 HP / 480 LB-FT) maybach-57---62--240---2002-2012--5-5-l-v12-biturbo-esr4717095 The RENNtech Sport Muffler SystemRENNtech Porsche 997. 2 Turbo (3. 8L) ECU Upgrade. Up to 550HP and 575LB FT. Gains: +50HP & +95LB 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