G-Chassis · G81

G81 Tuning

BMW's M3 Touring, 2022–2026. Powered by the S58 engine family.

Stage pricing for the G81

Stage 1
Tune
$495

Where every build starts. Calibration only.

Build this stage Stage 1 methodology
Stage 2
Tune + Supporting Hardware
$10,925

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

Build this stage Stage 2 methodology
Stage 3
Tune + Full Hardware Path
$16,195

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

Build this stage Stage 3 methodology

For decades the M3 Touring was the car enthusiasts joked BMW would never build. The G81 is them finally building it — the first M3 wagon in history, and by most accounts worth the wait.

Mechanically it's a G80 M3 wearing an estate body: the same S58 twin-turbo six, offered only as the Competition with xDrive and the eight-speed auto — 503 hp at launch, lifted to 523 in the current cars. The full engine story — headroom, calibration, the honest ownership notes — lives on the G80 page; none of it changes because there's a roof over the cargo area. What changes is what the car is *for*: this one runs M3 numbers and still swallows a dog crate, a stroller, and a set of track wheels.

The catch for a US audience is availability — BMW never sold the M3 Touring here officially, so the few on American roads arrived the hard way. That makes it more aspiration than inventory for most. But the platform is identical to the sedan's, which means anything that builds a G80 builds a G81.

So the appeal is specific and real: a wagon's practicality, an M3's drivetrain, and the rarity of a car BMW spent thirty years refusing to make. For the enthusiast who wants exactly that, there's no substitute.

Parts that fit the G81

DR Forged wheels for the G81

Custom, made-to-order forged wheels — built to your car's spec, so any of them fits the G81. Pick the look; we build the fitment.

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Tech essays for the G81

Upcoming events

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Set the G81 as your garage vehicle and the rest of the store filters to what fits it.

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ANSWERED

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.