CarBahn Tuning
Choose Your Power Path.
Two ways to wake up your BMW, Audi, or Mercedes — both engineered the CarBahn way. Pick the route that fits your goals, your install comfort level, and how far you want to push.
Performance Controller
Plug-and-play power. Install in about an hour with no special tools — then control your tune through the app with 91/93/100 octane maps. No ECU unlocks. No drama.
Best for fast install
- Installation: DIY at home, authorized dealer, or trusted local mechanic
- App-controlled maps: quick switching for different fuel octanes
- Upgradeable: Stage 1 → Stage 2 later on, remotely (no uninstall needed)
- Future-proof: $250 trade-in credit if you switch to Flash Software later
- Designed & tested in America
Flash Software
Maximum output. The deepest calibration we offer — typically available in Stage 1, Stage 2, and Stage 3. Dealer-installed, with full-control features like top-speed governor removal.
Best for max gains
- Authorized dealer install only
- June 2021+: requires FEMTO unlock (we offer FEMTO service at dealerships)
- Pre-June 2021: bench unlock handled at the dealer
- Features: removes top-speed governor, optional burbles + remote start
- Support hardware: Stage 2 = cooling, Stage 3 = intercoolers
- Reversible: flash back to stock when needed
Want the easiest install with app-controlled octane maps? Go Performance Controller.
Chasing the biggest gains + full calibration features? Go Flash Software.
