F-Chassis · F46

F46 Tuning

BMW's 225i Gran Tourer, 2015–2021. Powered by the B48 engine family.

Stage pricing for the F46

Stage 1
Tune
$495

Where every build starts. Calibration only.

Build this stage Stage 1 methodology

The F46 is BMW's 2-series Gran Tourer — the seven-seat MPV variant of the UKL platform, sold 2015 to 2021 in international markets with the B48 turbo-four. F46 tuning at EW is rare: the Gran Tourer was a Europe-and-Asia volume car that barely registered in the US tuning community. The chassis itself sits outside the rear-drive family our volume work is built around.

What we ship for the F46: BM3 Stage 1 calibration on the B48, plus the supporting hardware that crosses over from the broader B48 catalog where the transverse engine bay allows it.

Stock peak is 228 hp in the 225i Gran Tourer. Stage 1 picks up real gains on factory hardware — the same gains the engine sees in every other B48 application.

Below: every part we ship that fits the F46. If you've got one of these and the rest of the BMW tuning world has been treating you like the platform doesn't exist, the B48 underneath is the same engine we tune every week.

Parts that fit the F46

DR Forged wheels for the F46

Custom, made-to-order forged wheels — built to your car's spec, so any of them fits the F46. Pick the look; we build the fitment.

Browse all wheels

Tech essays for the F46

Upcoming events

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Set the F46 as your garage vehicle and the rest of the store filters to what fits it.

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Before you tune.

Will my dealer flag the tune at service?

The bootmod3 flash is non-destructive and reversible. Revert to stock before a dealer appointment and the ECU is back to factory in a few minutes; re-flash after service. We document the revert step in writing so the next person opening your file knows what's there.

Is it safe for the engine?

Every tune we ship has been datalogged on the car it was written for. We look at knock counts, fuel trims, boost behavior, and intake temps before we sign off. If the numbers don't sit right, we revise. That review and the revision policy are built into what the tune costs.

How long until I have a working tune?

Most calibrations turn around in a few days. We log, review, and revise before anything ships — we would rather get it right than get it out fast.

Can I go back to stock?

Yes. bootmod3 supports a stock revert that returns the ECU to factory calibration in under five minutes. The flash is non-destructive — nothing in the BMW DME is permanently modified. Most owners revert before trade-in.