QST BMW M2C/M3/M4 S55 ECU Software

Inc. VAT

Our ECU Software for the S55 Powerplant has been expertly developed on the dyno and tested vigorously on the road to provide a fully developed tuning solution offering exceptional gains in HP and Torque throughout the powerband and drivability exceeding expectations whilst still maintaining complete reliability as you would expect.

Stage 1:




Stage 2:



Other features are available in our bespoke software, 'GTS' burbles, crackle on over-run and cold start delete.

ECU/TCU Software

Read More