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ECU Tune for 2004-2005 BMW X Series E83 X3

Through custom ECU tuning we are able to provide more usable horsepower and torque outputs by modifying BMW’s dual variable cam timing (VANOS), drive by wire tables, and fuel and ignition maps. Better part-throttle drivability is also obtained. The engine rev limiter is raised to 7000 RPM’s. Rear O2 sensor monitoring can be disabled  upon request for race cars and/or off-road use only vehicles.


E83 X3

You may either mail your ECU to us for programming or upload your tune with the optional ECI cable. Other options include: disable rear O2 sensor monitoring.
  • Price: $349.00
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