RENNtech ECU Upgrade for E 550 | W212 | 402 HP / 405 LB-FT | MY2010-2011 mercedes-benz-c-class--204-sedan---2008-2014--c-63-amg-esr4188940 Cayenne GTS

Cayenne GTS

215 HP @ 5700 RPM

Diverter Valve

CLASS E (W 212) 500 V8 4-matic [2 Filters Required] (HP: 388 | Year: 09 > 11)

The headers are the perfect complement to our sound and performance exhaust and increase performance an additional +30 HP and +30 LB-FT

RENNtech ECU Upgrade for E 550 | W212 | 402 HP / 405 LB-FT | MY2010-2011 mercedes-benz-c-class--204-sedan---2008-2014--c-63-amg-esr4188940 Cayenne GTSRENNtech ECU Upgrade for 212 E 550. Up to 402HP and 405LB FT. Gains: +20HP & 14LB FT RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few