S55 Custom Tune (M3 F80, M4 F82 and M2 F87 Competition) MHD Flash
Custom features included
Flames or burbles included.
Map switch on the fly
Optionally switch between different maps (e.g., Stage 2 with flames, Stage 2 without flames, Stock) directly via your steering wheel. Only available with MHD, Bootmod3, and MG Flasher.
Lifetime premium support
Whether before or after your purchase: We will personally help you with any questions.
Intelligent engine protection
We always program in protective mechanisms, so you don't have to worry.
Dyno-tested performance
Each map was developed and validated on the performance test bench.