RENNtech Porsche 997 Carrera S (3.8L DFI) ECU Upgrade (365 HP / 300 LB-FT) mercedes-benz-clk-class--208---1997-2003--clk-55-amg-esr2755074 Available in Gloss and Matte

Available in Gloss and Matte Carbon

0L Inline-6 EQBoost

This highly integrated pre-preg carbon fiber spoiler compliments the sophisticated and refined C-Class exterior design language

5 series ONLY CHINA (F18) 535 Li (HP: 306 | Year: 10 > )

CLASS S LONG (W 221) 500 [ONLY USA] [2 Filters Required] (HP: 387 | Year: 05 >)

RENNtech Porsche 997 Carrera S (3.8L DFI) ECU Upgrade (365 HP / 300 LB-FT) mercedes-benz-clk-class--208---1997-2003--clk-55-amg-esr2755074 Available in Gloss and MatteRENNtech Porsche 997 Carrera S (3. 8L DFI) ECU Upgrade. Up to 396HP and 320LB FT. Gains: +11HP & +10LB 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