RENNtech ECU Hand Held Tuner (HHT) for E 500 | W211 | 320 HP / 355 LB-FT | MY2003-2006 mercedes-benz-e-class-coupe--238---2017-present--e-400-esr9718640 Derived from RENNtech Motorsports’ AMG

Derived from RENNtech Motorsports’ AMG GT4 racecar

- Rigid grill mesh mount system for protection

Advanced Technology

X253 | GLC-Class

RENNtech strives to deliver the highest quality carbon fiber products in the industry

RENNtech ECU Hand Held Tuner (HHT) for E 500 | W211 | 320 HP / 355 LB-FT | MY2003-2006 mercedes-benz-e-class-coupe--238---2017-present--e-400-esr9718640 Derived from RENNtech Motorsports’ AMGRENNtech ECU HHT (HandHeldTuner) for the 211 E 500. Up to 320HP and 355 LB FT. Gains: +18HP & +16LB 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