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that cable connects to a laptop
Speed Limiter/Vmax increase* - in some cars this is controlled by CPC module and we cannot change speed limiter in those cases
and coding
If the mileage counter keeps counting down
2012 - 2018 Mercedes Benz CLS63 AMG - M157 V8 Bi-turbo 5.5 - Performance ECU Tuning S63TU that cable connects to aPerformance M157 ECU tune for the Mercedes Benz CLS63 AMG W218 with M157 5. 5L V8 Bi Turbo Engine with MED17. 7. 1 MED17. 7. 3 ECU. Stage 1 M157 CLS63 AMG Performance Tune gains: 122WHP @ 4000RPM 193WTQ @ 2700RPM Performance tuning modifies torque limiter maps, boost levels, fuel maps, ignition timing advance maps and more. All to help safely increase HP TQ, while keeping good drive ability and factory fail safes limp protection in place. Factory
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