Build · Configurator
Plan your build.
Pick parts category by category. See live horsepower gain, total cost across manufacturers, and install time. Mix Stage 1 bolt-ons or plan a full Stage 2+ FlexFuel build.
Live build · F10 535i M Sport
Move your mouse · selected parts light up on the car
Estimated WHP
300
factory baseline
Total cost
$0
no parts yet
Install time
0 hrs
DIY estimate
Tune
Pick the brain first. Most N55 builds start here — a flash unlocks the boost limits everything else needs.
Fueling
FlexFuel and high-WHP builds need the HPFP and (optionally) LPFP upgraded before adding airflow.
Turbo
The single biggest WHP swing. Pairs only with upgraded fueling + tune above.
Intake
Cooler, denser air. Marginal alone, foundational for high-power builds.
Intercooler
Stops heat soak under sustained load. Required for repeat dyno pulls + track use.
Exhaust
Downpipe is mandatory for tune to make full power. Cat-back is taste.
Engine
Plugs and sensors. Maintenance + headroom items.
Suspension
Doesn't make WHP, just makes you faster.