RENNtech ECU Upgrade for CLS 550 | C219 | 402 HP / 405 LB-FT | M273 BiTurbo | MY2007-2011 mercedes-benz-c-class--204-sedan---2008-2014--c-63--amg-black-series-esr3194090 CLS (C 219) 350 CGI

CLS (C 219) 350 CGI [2 Filters Required] (HP: 292 | Year: 06 > 10)

RENNtech V3 DLM Module Specifications:

2018-2021 Maybach C217 S560

For extra convenience the EVM is programmed so once the flaps are fully opened they will stay that way even when the car is turned off and restarted later hence no need to press button 1 over and over every time you start the car

RENNtech ECU Upgrade for CLS 550 | C219 | 402 HP / 405 LB-FT | M273 BiTurbo | MY2007-2011 mercedes-benz-c-class--204-sedan---2008-2014--c-63--amg-black-series-esr3194090 CLS (C 219) 350 CGIRENNtech ECU Upgrade for 219 CLS 550, up to 402HP, 405LB FT. Gains: +20HP & 14LB FT RENNtech M273 Biturbo ECU Upgrades 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