2012 - 2018 Mercedes Benz CLS550 - M278 V8 Bi-turbo 4.7L - Performance ECU Tuning ECU Tuning Stage:M278 Stage 1 Performance Tune This guarantees seamless integration and

This guarantees seamless integration and prevents issues with vehicle functionality

25-30% Faster Write Speeds: Significantly faster than generic K+DCAN cables with outdated firmware

there’s no need for additional programming or adaptations—just plug it in and go

N55 Engines: Found in 135i models

(VB13) : DME / MSV70

2012 - 2018 Mercedes Benz CLS550 - M278 V8 Bi-turbo 4.7L - Performance ECU Tuning ECU Tuning Stage:M278 Stage 1 Performance Tune This guarantees seamless integration andPerformance Flash Tune for Mercedes Benz CLS550 W218 with M278 4. 7L V8 Bi Turbo Engine with MED17. 7. 1 MED17. 7. 3 ECU. CLS550 M278 Stage 1 Performance Tune gains: 76WHP @ 3500RPM 118WTQ @ 3500RPM 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 emissions remain