TRM MS42 Performance Software



SKU: 030-42 Categories: , ,


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 can be shipped to us for programming or we can use the TRM Flashing Tool to flash your Car/ECU remotely if you have a KDCAN cable. A flashed ECU is also available if you select “buy an ecu”, though subject to availability. Email first if you would like an ECU provided to inquire about timeline for shipping.

For CAM tunes, or just to get the most out of your car, we recommend a custom tune.

Additional information

Weight .5 lbs
Dimensions 8 × 6 × 2 in





, ,






Remote Flash, Send in my own

You may also like…