2014 - 2017 Mercedes Benz S63 AMG - M157 V8 Bi-turbo 5.5 - Performance ECU Tuning M157 Tune Flash Type:W217 S63 AMG M157 Remote Flash - BMW E39 M52 EWS

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2014 - 2017 Mercedes Benz S63 AMG - M157 V8 Bi-turbo 5.5 - Performance ECU Tuning M157 Tune Flash Type:W217 S63 AMG M157 Remote Flash - BMW E39 M52 EWSPerformance M157 ECU tune for Mercedes Benz S63 AMG C217 with M157 5. 5L V8 Bi Turbo Engine with MED17. 7. 1 MED17. 7. 3 ECU. Stage 1 M157 S63 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 emissions