TUNING OEM+
OEM+ · BMW & MINI

BMW reliability, expressed differently.

More response and midrange, the smoothness you bought the car for, and nothing that announces itself. A conservative, reversible calibration that feels like the factory could have shipped it — done by people who daily these cars too.

ANSWERING WHAT YOU'D ACTUALLY ASK

The three questions every cautious owner asks.

01

Will my dealer detect this?

Plain answer: every calibration flashes back to the factory file and is fully reversible — before a service visit, a trade-in, anytime. We won't promise 'undetectable'; we'll show you exactly what a modern DME does and doesn't record for your car, and how the reversal works.

02

Will it stay smooth?

Yes. The whole point is power without drama — no surging, no rough idle, no theater. If you want it louder and angrier, that's a different tune; this isn't it.

03

Will it hold value?

Reversible means you hand back a stock car. Trade-in, dealer service, resale — we'll show you how it goes back exactly the way the factory shipped it.

IN EVERY OEM+ TUNE

Conservative on purpose. Reversible by design.

Conservative

We add response and midrange where you feel it, while staying careful with the cells that affect longevity and refinement.

Reversible

Where the platform allows, the car returns to factory operation. Nothing we do is a one-way door.

Documented

Every change recorded in writing. You know exactly what's on the car and why.

Book a 30-minute consult. We'll tell you straight whether it's worth it for your car.