Eventuri Intake Dyno - E46 M3

Eventuri Intake vs Stock Intake Dyno with E46 M3 Review

I finally got a chance to dyno the Eventuri intake on my E46 M3. The dyno testing was done to measure the power…


E46 M3 E85 - Proflex Commander

Upcoming B-Spec Tune Features - 2/27/2018

We are excited to announce new features coming soon for the B-Spec Tune. As always, updates and new feature requests…


Launch Control Released for B-Spec Tune

I know a lot of you guys have been waiting for the 6MT Launch Control feature on our B-Spec Tune after we posted the…


Twinline Garage Buildjournal B-Spec Tune on E85

Twinline Garage Runs E85 On His B-Spec Tune E46 M3

We love to see that more E46 M3 owners are getting our Buildjournal B-Spec Tune and we were super pumped to see that…


E46 M3 Launch Control - Buildjournal B-Spec Tune

E46 M3 2-Step Launch Control for 6MT in Development

We've got some exciting news for all current and future 6MT B-Spec Tune customers. We are currently in beta testing…


B-Spec Tune Price

Last Chance for B-Spec Tune at $199

This is your last chance to get the B-Spec Tune for your E46 M3 for $199! After Cyber Monday on 11/27, we will be…