RENNtech ECU Hand Held Tuner (HHT) for C 55 | W203 | 380 HP / 395 LB-FT | MY2005-2006 mercedes-benz-sl-class--230---2003-2006--sl-65-amg-esr5843963 the module can be unplugged

the module can be unplugged and the screen goes back to the regular Mercedes menu

CLASS S (W 221) 400 HYBRID [2 Filters Required] (HP: 279 | Year: 09 >)

Plug and Play with original plugs

RENNtech Carbon Fiber Front Strut Bar for the 204 - C Class - GLK Class

C63 (S) AMG Coupe (C205 | MY2016+ | RWD | M177 | 4

RENNtech ECU Hand Held Tuner (HHT) for C 55 | W203 | 380 HP / 395 LB-FT | MY2005-2006 mercedes-benz-sl-class--230---2003-2006--sl-65-amg-esr5843963 the module can be unpluggedRENNtech ECU HHT (HandHeldTuner) for the 203 C 55 AMG. Up to 380HP and 395 LB FT. Gains: +18HP & +17LB 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.