RENNtech ECU Hand Held Tuner | HHT | E 63 AMG | W212 | 534HP/485 LB-FT | 6.3L N/A | M156 | MY2010-2011 porsche-911--991-1---2011-2016--turbo-s-esr5268728 700rpm Note: Mercedes M177 engine

700rpm Note: Mercedes M177 engine performance when measured

Gains: Up to +208HP | +137LB-FT

- Lightweight Front Subframe

RENNtech ECU Upgrade for the 176 - A 45 AMG

RENNtech ECU HHT (HandHeldTuner) for the 230 - SL 63 AMG

RENNtech ECU Hand Held Tuner | HHT | E 63 AMG | W212 | 534HP/485 LB-FT | 6.3L N/A | M156 | MY2010-2011 porsche-911--991-1---2011-2016--turbo-s-esr5268728 700rpm Note: Mercedes M177 engineRENNtech ECU HHT (HandHeldTuner) for the 212 E 63 AMG. Up to 534HP and 485LB FT LB FT. Gains: +26HP & +20 LB 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.