RENNtech ECU Hand Held Tuner | HHT | SL 63 AMG | R230 | 534HP/485LB-FT | 6.3L N/A | M156 mercedes-benz-c-class--217---2014-2020--s63-amg-esr5011825 the company’s Affalterbach based performance

the company’s Affalterbach based performance division and long fabled engine builder

Carrera 4S

Choose between 48 different solid and transparent colors

RPM Tuned: 601 HP | 560 LB-FT

Eliminates the spongy feel

RENNtech ECU Hand Held Tuner | HHT | SL 63 AMG | R230 | 534HP/485LB-FT | 6.3L N/A | M156 mercedes-benz-c-class--217---2014-2020--s63-amg-esr5011825 the company’s Affalterbach based performanceRENNtech ECU HHT (HandHeldTuner) for the 230 SL 63 AMG. Up to 534HP and 485LB FT LB FT. Gains: +16HP & +20LB 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.