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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
allowing the replacement ECU to function as if it were factory-installed
+78 WTQ @ 2000-2800 RPM
25-30% Faster Write Speeds: Significantly faster than generic K+DCAN cables with outdated firmware
Replacement ECU: A compatible donor ECU with matching part numbers
CL600 (W215): Powered by the M137 (5
2011 - 2013 Mercedes Benz S550 - M278 V8 Bi-turbo 4.7L - Performance ECU Tuning Misc allowing the replacement ECU toPerformance Flash Tune for Mercedes Benz S550 W221 with M278 4. 7L V8 Bi Turbo Engine with MED17. 7. 1 MED17. 7. 3 ECU. S550 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 remain
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