Originally Posted by Sensible_
Ah I see. Good luck!
We coded the Alpina B3 tranny software to work on a 335! The TCU (tranny) can take much more torque since its calibrated for an engine with 400 hp crank and 500 nm torque. The shifts are more crisp and precise and the rev limiter is increase slighty. This software was programmed for the special edition Alpina B3! Now we all can enjoy its programming