RENNtech ECU Upgrade for CLS 550 | C219 | 402 HP / 405 LB-FT | M273 BiTurbo | MY2007-2011 porsche-panamera--970---2011-2015--panamera--s-e-hybrid-esr6964785 414 LB-FT @ 3

414 LB-FT @ 3

RENNtech Stainless Steel Downpipes with 200 Cell Catalytic Converters for 231 - SL 63 AMG BiTurbo M157-Series

5L V8 BiTurbo) Stock Performance (at crank):

The design is perfect as a stand alone component or in conjunction with our component exterior aerodynamic upgrades such as our CLS rear diffuser and deck lid spoiler

RENNtech Carbon Fiber Brake Ducts for 190 AMG GT Family

RENNtech ECU Upgrade for CLS 550 | C219 | 402 HP / 405 LB-FT | M273 BiTurbo | MY2007-2011 porsche-panamera--970---2011-2015--panamera--s-e-hybrid-esr6964785 414 LB-FT @ 3RENNtech 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