RENNtech ECU Hand Held Tuner (HHT) for G 500 (W463- 320 HP / 355 LB-FT) mercedes-benz-slk-class--170---1997-2003--slk-32-amg-esr3156573 Rated by RENNtech: 421 HP

Rated by RENNtech:               421 HP @ 5

CLASS E (W 211) 240 V6 [2 Filters Required] (HP: 177 | Year: 02 > 05)

the OEM Wing Base and Spoiler Deactivation module are required

Increased airflow

The canards kit also features a unique acrylic coating process which protects the carbon fiber from any harmful UV and humidity degradation

RENNtech ECU Hand Held Tuner (HHT) for G 500 (W463- 320 HP / 355 LB-FT) mercedes-benz-slk-class--170---1997-2003--slk-32-amg-esr3156573 Rated by RENNtech: 421 HPRENNtech ECU HHT (HandHeldTuner) for the 463 G 500. Up to 320HP and 355 LB FT LB FT. Gains: +28HP & +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.