Buildjournal
Buildjournal
Buildjournal - Race on Sunday, Fix on Monday
Buildjournal - Race on Sunday, Fix on Monday
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Tuning and Software

The best power mod for your BMW E46 M3 S54. Extract the most horsepower and torque with your E46 M3 by flashing a new tune on the ECU. The factory engine tune runs safe parameters however you can fully unlock the potential of the factory ECU with our B-Spec Tune. Get better throttle response, maximize power, and also get some cool added tuning features such as Shift Lights.

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Buildjournal B-Spec Tune BMW E46 M3

B-Spec Tune – BMW E46 M3

$329.00
Buildjournal Coding for BMW F30

SMG Transmission Tune – E46 M3

$99.00
BMW K+DCAN OBD2 USB Cable FTDI

BMW K+CAN K+DCAN OBD2 Cable

$29.99
Buildjournal B-Spec Tune BMW E46 M3

B-Spec Tune Transfer – E46 M3

$160.00
Buildjournal B-Spec Tune BMW E46 M3

Re-tune Service for B-Spec Tune – E46 M3

$20.00 – $80.00
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race on sunday, fix on monday

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