Mercedes Benz W212 & W218 E63S/CLS63 AMG ECU Tuning - Stage 1

Stage 1 ECU Tuning for W212/W218 E63S/CLS63 AMG with M157 5.5L Twin Turbo V8

- 520 WHP & 650 WTQ 

- Increase throttle response

- Remove Top speed limiter; Vmax 

- All factory safeties are left untouched, allowing the ECU to step in if it determines there are any issues.

**This tune also works on ML63 AMG** 

These tunes are meant for *OFFROAD USE ONLY*. 

*Power gains vary based on model, modifications, fuel, and running conditions.

*Requires your ECU to be sent in to Outrun MFG if you are unable to bring your car to our location.

*2020+ models may require unlocking