2011 - 2014 Mercedes Benz CL550 - M278 V8 Bi-turbo 4.7L - Performance ECU Tuning M60B30 M278 E550 Tune Vehicle Fitment:

M278 E550 Tune Vehicle Fitment:

- E60 M5 SMG Euro Upgrade - Bench Flash:

Supported Mercedes-Benz W211 Models with ME2

providing precise control over the high-performance inline-six engine used in the M4 of this generation

2 EWS Delete

2011 - 2014 Mercedes Benz CL550 - M278 V8 Bi-turbo 4.7L - Performance ECU Tuning M60B30 M278 E550 Tune Vehicle Fitment:Performance Flash Tune for Mercedes Benz CL550 C216 with M278 4. 7L V8 Bi Turbo Engine with MED17. 7. 1 MED17. 7. 3 ECU. CLS550 M278 Performance Flash Tune Stage 1 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