2011 – 2013 BMW F10 550i 550iX - N63 Twin-Turbo MSD85 - Performance DME TuningBMW N63 Performance ECU tuning software for F07 F10 F11 550i and 550iX Stage 1 N63 550i ECU Tune improvements on stock hardware: HP Gains: 79WHP TQ Gains: 110WTQ Performance tuning modifies torque limiter maps, boost levels, fuel maps, ignition timing maps and more. All to help safely increase HP TQ, while keeping good drive ability and factory fail safes limp protection in place. We do not offer tuning for emission delete, we do not disable catalytic
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