BMW S55
The heart of the M3, M4 and M2 Competition. Software alone brings a lot, and the right fuel system brings even more.
The S55 is a twin-turbo M inline six that handles tuning well. Each custom tune is built from datalogs to match your car's setup, and Flex Fuel and map switching are available.
At higher power levels the fuel system needs upgrading. We supply an S55 low-pressure fuel pump sized for more than 750 hp. We also have an LPFP suitable for over 1000HP
Ignition coils are weak parts in stock form and we strongly recommend upgrading to stronger and more reliable B58 OEM coils. It requires a conversion kit and we recommend SETES conversion kit which you can find from setestech.com and kauppa.bcmotors.fi webshops.
Supported models
Typical models
- M3 F80
- M4 F82 / F83
- M2 Competition F87
- M2 CS F87
We always confirm support for your specific model. If your car isn't listed, ask us.