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AboutBuildjournal is an independent E46 M3 enthusiast site dedicated to BMW builders, track go-ers and auto photographers. We specialize is tuning performance and community support.
FREQUENTLY ASKED QUESTIONS FOR B-SPEC TUNE
BREAK IN PERIOD
We recommend driving your M3 normally as you would and increasingly drive it more aggressively as your M3 adapts to your tune via the fuel trims. The backfire feature will add excitement to your driving experience. However, triggering backfire feature continuously for hours without any break for the engine to cool down is not recommended. If you notice any issues, flash the car back to its original tune and please refer to the FAQ below for troubleshooting. Alternatively, you can reset fuel adaptions via INPA or BMWLogger.
We will likely be making changes as we get feedback from the community. Simply flash back to your stock tune. Then email [email protected] with your symptoms along with DME Code readout (We need this to ensure it is not an isolated case and is caused by malfunctioning part on your car). If you have any questions or feedback, please email us at [email protected] or feel free to post on our M3Forum thread.
For general questions or business inquiries, please email us at [email protected]
P.O. Box 61950
Irvine, CA 92602-9998