FABSPEED BMW M3 E46 XperTune Performance Software (2002-2006)

Fabspeed BMW M3 E46 XperTune Performance Software (2002-2006)

Achieve maximum power from the BMW M3 3.2L straight-six engine without sacrificing drivability or reliability by optimizing the engine's performance. Fabspeed Motorsport offers an alternative tuning method for vehicles equipped with ECU's that traditionally required bench flashing. No longer do you need to remove your ECU and mail it in for a tune. The Handheld device interfaces with the OBD-II port on your vehicle and your computer to complete the tuning process. Simply flash your M3 with a Fabspeed ECU Tune utilizing the included handheld tuner. Performance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable).

No need to send your ECU in to return to stock - simply use the Handheld to flash back, then to your Fabspeed XperTune again at any point!

Fits all BMW E46 M3 vehicles (2002-2006)

Stock = 343 hp / 269 ft-lbs

Tuned = 365 hp / 285 ft-lbs

Special requests and tune file upgrades may be subject to additional fees.

Manufacturer SKU: FS.BMW.E46.ET. Select the verified configuration for your vehicle.