RENNtech ECU Hand Held Tuner | HHT | W204 | C 63 AMG | 517HP/485LB-FT | 6.3L N/A | M156 | MY2008-2015 mercedes-benz-gls-class--167---2020-present--gls-450-esr7245365 Up to 709 HP and

Up to 709 HP and 638 LB-FT @ crank

RENNtech products are manufactured to perfectly match the stock Aston Martin exhaust system and include all necessary mounting hardware and clamps

The Mercedes 205 - C 63 AMG comes with the newest engine fully developed by AMG

CL (C216) 500 Blue Efficiency [2 Filters Required] (HP: 435 | Year: 10 > )

6 (HP: 290 | Year: 07 > 10)

RENNtech ECU Hand Held Tuner | HHT | W204 | C 63 AMG | 517HP/485LB-FT | 6.3L N/A | M156 | MY2008-2015 mercedes-benz-gls-class--167---2020-present--gls-450-esr7245365 Up to 709 HP andRENNtech ECU HHT (HandHeldTuner) for the 204 C 63 AMG. Up to 517HP and 485LB FT LB FT. Gains: +66HP & +52LB 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.