G-Chassis · G22

G22 Tuning

BMW's 430i, M440i, 2021–2026. Powered by the B48/B58 engine family.

Stage pricing for the G22

Stage 1
Tune
$495

Where every build starts. Calibration only.

Build this stage Stage 1 methodology
Stage 2
Tune + Supporting Hardware
$2,185

Cooling, downpipe, fueling — the ceiling worth chasing on factory turbos.

Build this stage Stage 2 methodology
Stage 3
Tune + Full Hardware Path
$4,255

Bigger fueling, often a hybrid or Phantom turbo. Per-car.

Build this stage Stage 3 methodology

The G22 gets talked about for its grille before anything else — the tall vertical kidneys are the first thing anyone mentions. Look past the front end and it's a G20 3 Series in coupe form: same platform, same engines, same tuning story.

The M440i runs the B58 (382 hp here, with a 48-volt mild-hybrid assist) — the familiar 3.0-liter six doing in this coupe exactly what it does in the M340i (full story on the G20 page). The 430i uses the B48 four (255 hp), the efficient daily. Both come rear- or all-wheel drive, and both take a calibration the way their sedan siblings do.

One modern wrinkle: like the rest of the current-generation cars, the G22's ECU is locked, so the proven route is a piggyback rather than a flash — the G42 page explains what that means in practice. The usual B58/B48 maintenance carries over too (the oil-filter-housing gasket; see the G20 page).

So the pitch is simple: G20 capability, coupe shape, current-gen tuning. The grille's just the conversation starter.

Parts that fit the G22

DR Forged wheels for the G22

Custom, made-to-order forged wheels — built to your car's spec, so any of them fits the G22. Pick the look; we build the fitment.

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Tech essays for the G22

Upcoming events

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Set the G22 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.