E39/E46 M52TU/M54 Tuning

BMW M52TU and M54 tuning for supported MS42, MS43, and MS45 applications. Identify the ECU from the vehicle read, configure the actual engine and hardware, and then choose the desired calibration stage. Chassis and model year alone are not sufficient.

For a one-off build that needs revision-based calibration and datalog development, use UNDSPTD. bespoke tuning.