BMW E46 330i - Custom Tuning Model-M140i B58 F20/F21 and enhances driver confidence —

and enhances driver confidence — without sacrificing everyday comfort

Increased Torque Limits

We've worked on the pedal response too

Features include:

and tailored to your goals

BMW E46 330i - Custom Tuning Model-M140i B58 F20/F21 and enhances driver confidence —TRS Custom M54 Tuning The M54B30 is legendary for its reliability and all around performance, used in the X5 to the Z4 and everything in between. However, in terms of outright performance, it's always lived in the shadow of its race derived S54 sibling. Now that S54 powered cars have skyrocketed in price, the M54 is the best affordable option for track cars and Sunday drivers alike. We wanted to set about creating a custom tune that offers both