RENNtech ECU Hand Held Tuner (HHT) for G 55 (W463- 370 HP / 410 LB-FT) mercedes-benz-slk-class--171---2004-2010--slk-55-amg-esr5743216 0" front and rear

0" front and rear

Gains up to: +95 HP | +55 LB-FT

CLS (C 219) 300 [2 Filters Required] (HP: 231 | Year: 09 > 10)

+114 HP & +100 TQ

R-Line Comparison: Vehicle Package HP Gains TQ Gains X167 - AMG GLS 63 Stock

RENNtech ECU Hand Held Tuner (HHT) for G 55 (W463- 370 HP / 410 LB-FT) mercedes-benz-slk-class--171---2004-2010--slk-55-amg-esr5743216 0" front and rearRENNtech ECU HHT (HandHeldTuner) for the 463 G 55 AMG. Up to 380HP and 410 LB FT 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. Programming takes only a few