The best performance software available for your E46 323 or 328, or E39 528. (MS42 equipped M52TU.)
Stage 1 is our performance tune on a stock vehicle.
Stage 2 is a performance tune for catless headers. (For off road use only.)
Stage 3 is a performance tune with catless headers and no rear O2 sensors (For off road use only.)
ECU must be shipped to us for programming. The TRM Flasher/Logger will be available for this application shortly.
For CAM tunes, or just to get the most out of your car, we recommend a custom tune.