- No Fields Found.
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.
Engine tuning and vehicle coding for the BMW 3 series including 320i, 328i, 335i, 340i, and E46 M3.
Tuning and flashing services for the 01-06 BMW E46 M3. Increase up to +30 brake horse power from base line tune for your S54 engine using our B-Spec Tune. Unlimited free add-on features to choose from. We’ve developed an Exhaust Backfire Tune for those who want more out of their exhaust. Check out our Stage 3 EBT flash for aggressive pops and occasional flames.
For sponsorship requests or general questions, please email us at [email protected]