G-Chassis · G12

G12 Tuning

BMW's 740i, 750i, 745e xDrive (PHEV), 2016–2022. Powered by the B58/N63 engine family.

What we tune on the G12: every variant BMW shipped on the B58/N63 platform. 2016–2022 model years. BM3-native calibration on every car listed below. Stage 1 / Stage 2 / Stage 3 paths available where the platform supports it.

Parts that fit the G12

BMW G11 740i — Custom BM3 Tune
BMW G12 740i — Custom BM3 Tune
STAGES 1–3
G12 · B58
From $495
BMW G11 750i (N63TU2)
BMW G12 750i (N63TU2)
STAGES 1–3
G12 · N63TU2
From $495

DR Forged wheels for the G12

Custom, made-to-order forged wheels — built to your car's spec, so any of them fits the G12. Pick the look; we build the fitment.

DL02 — DR Forged
DL02 Forged Wheel — DL Series Monoblock
From $1,567.50
DL03 — DR Forged
DL03 Forged Wheel — DL Series Monoblock
From $1,567.50
DL04 — DR Forged
DL04 Forged Wheel — DL Series Monoblock
From $1,567.50
DL05 — DR Forged
DL05 Forged Wheel — DL Series Monoblock
From $1,567.50
DL06 — DR Forged
DL06 Forged Wheel — DL Series Monoblock
From $1,567.50
MD01 — DR Forged
MD01 Forged Wheel — MD Series Monoblock
From $1,377.50
MD02 — DR Forged
MD02 Forged Wheel — MD Series Monoblock
From $1,377.50
MD03 — DR Forged
MD03 Forged Wheel — MD Series Monoblock
From $1,377.50

Browse all wheels

Upcoming events

28, 2026

Chin Track Days HPDE — Homestead-Miami Speedway

Homestead-Miami Speedway · Homestead
Details

Set the G12 as your garage vehicle and the rest of the store filters to what fits it.

Set vehicle
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.