RENNtech ECU Hand Held Tuner | HHT | W204 | C 63 AMG Black Series | 517HP/485LB-FT | 6.3L N/A | M156 |MY2012 bentley-continental-gt--2018-present--4-0l-v8-tfsi-esr4546060 CLASS E SW (S 211)

CLASS E SW (S 211) 280 V6 4-matic [2 Filters Required] (HP: 231 | Year: 05 > 09)

5" front and rear

CLS (C 219) 280 [2 Filters Required] (HP: 231 | Year: 08 > 09)

Keeps your drinks ice cold longer during a long road trip

CLASS S (W 220) 280 [2 Filters Required] (HP: 204 | Year: 98 > 05)

RENNtech ECU Hand Held Tuner | HHT | W204 | C 63 AMG Black Series | 517HP/485LB-FT | 6.3L N/A | M156 |MY2012 bentley-continental-gt--2018-present--4-0l-v8-tfsi-esr4546060 CLASS E SW (S 211)RENNtech ECU HHT (HandHeldTuner) for the 204 C 63 AMG Black Series. Up to 517HP and 485LB FT. Gains: +7HP & +28LB 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.