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BMW 335i ECU Reflash for N54 Engines
Gains 60-70 whp
Adjustments to Fuel/Ignition Curve/Boost Levels/Throttle Mapping
Our custom ECU Flash for the BMW M3(F80)/M4(F82) has been proven to make a substantial increase in horsepower and torque over stock. By recalibrating fuel/ignition/boost...
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