Tuning · Toyota Supra 3.0 (J29 / DB)
Supra 3.0
B58 Gen 2
The MkV Supra runs the same Gen 2 B58. Hand-calibrated from Stage 1 to a fully bespoke big-turbo build. Choose your package, send your build to Samuel, and get a tune that fits the way you actually drive.
Engine
B58 Gen 2
Stock
382 bhp · 500 Nm
Stage 3 ceiling
382 bhp
About this tune
The MkV Toyota Supra 3.0 (J29 / DB, 2019-present) is the Toyota-badged half of a joint platform shared with the BMW Z4 M40i, same B58 Gen 2 engine, same ZF 8HP, same MG1CS003 ECU. Stock is 382 bhp / 500 Nm in the A91 LCI cars (pre-LCI A90 cars were rated lower in some markets but ran the same hardware). Available only as the J29 coupe. The Supra is the most popular B58 Gen 2 chassis for big-power builds globally, the aftermarket is mature, and the drag-strip and time-attack culture around it pushes the platform hard.
Toyota Supra 3.0 tuning
The Toyota Supra 3.0 (J29 / DB, 2019–present) runs the B58 Gen 2 and leaves the factory at 382 bhp · 500 Nm, Rear-wheel drive, 8-speed ZF automatic. Samuel tunes the J29 Coupe to the same standard — every map hand-calibrated for the specific car, its fuel grade and its installed hardware, not a base file loaded and left. Supra 3.0 Stage 1 alone takes it from 382 bhp · 500 Nm to 440 bhp · 680 Nm on the standard turbo, flashed over OBD on BM3, MHD or MG Flasher.
Add the Stage 2 hardware and the Supra 3.0 targets 480 bhp · 700 Nm; from there the B58 Gen 2 stretches to around 1000 bhp on a hybrid or big-turbo build with supporting fuelling. Whichever stage suits the Supra 3.0, the file is delivered within 24 hours and is fully reversible to the supplied stock calibration.
Configurator
Build your Supra 3.0 tune
Choose your stage — Stage 1, Stage 2 or Stage 3 — add the options that fit your car, and send the full build to Samuel for a custom remote remap. He'll quote, schedule, and personally calibrate within 24 hours of confirmation.
Add a stage or add-on
£0
Engine guide
Toyota Supra 3.0 tuning, stages, hardware and what to expect from the J29 B58
The MkV Supra (J29 / DB) runs BMW's B58 Gen 2, the same engine fitted to the M340i, M440i and Z4 M40i (the Supra and Z4 share a complete platform). From the factory, Toyota set the Supra 3.0 at 382 bhp / 500 Nm; the hardware ceiling sits considerably higher. Toyota Supra tuning with Samuel applies the same Gen 2 Stage 1 / Stage 2 map family used on every B58 Gen 2 chassis, the underlying hardware is identical. Whether it's a Toyota Supra A90 tuning project or the later A91 LCI, the calibration plan is the same.
Stage 1
440 bhp · 680 Nm
No hardware required. The MG1CS003 DME is flashed via the OBD port. Toyota Supra Stage 1 unlocks 440 bhp and 680 Nm from the OEM hardware (up from 382 / 500 stock). The Toyota Supra chip tuning starting point and by far the most popular single modification on the J29 platform, the most cost-effective change you can make.
Every Toyota Supra tune Samuel produces is calibrated individually for the specific car, fuel grade and installed hardware, not a base map loaded and left. Toyota Supra tuning done correctly accounts for the J29 chassis behaviour, the 8HP gearbox calibration and the global fuel-quality variation across the Supra owner base; the map is reviewed against your data logs after the first flash and revised before sign-off.
Compatibility
Platform and hardware compatibility
Bootmod3 (BM3)
Full B58 Gen 2 support on the MG1CS003 DME across every Gen 2 chassis (M340i, M440i, M240i G42, Z4 M40i, X3/X4 M40i, Supra 3.0). OBD-port flashing, realtime monitoring via the BM3 app. The most widely used platform for B58 Gen 2 tuning.
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MHD
Full B58 Gen 2 support. Suitable for Stage 1 and Stage 2. Strong data-logging toolset and active community support.
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MG Flasher
Full B58 Gen 2 support. Clean interface and reliable flash process. A common alternative to BM3 for owners who prefer the MG ecosystem.
Read more →
xHP Flashtool
Compatible with the ZF 8HP gearbox fitted to every B58 Gen 2 chassis. Gearbox calibration matched to the ECU map, strongly recommended at Stage 2 and above where torque jumps significantly. Available as an add-on.
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ECU: MG1CS003 DME across all B58 Gen 2 production. Accessible via OBD for Stage 1 and Stage 2; bench-flash only required for some Stage 3 hybrid setups.
Supra 3.0 specs & stage targets
Toyota Supra 3.0 tuning at a glance
- Engine
- B58 Gen 2
- Body styles
- J29 Coupe
- Chassis codes
- J29 / DB
- Production
- 2019–present
- Drivetrain
- Rear-wheel drive
- Gearbox
- 8-speed ZF automatic
- Stock output
- 382 bhp · 500 Nm
- Tuning ceiling
- ~1000 bhp on the right hardware
| Stage | Target |
|---|---|
| Stage 1 | 440 bhp · 680 Nm |
| Stage 2 | 480 bhp · 700 Nm |
| Stage 3, Hybrid Turbo | 550-1000 bhp depending on spec |
| Stage 3, Big Turbo Kit | 550-1000 bhp depending on spec |
FAQ
Supra 3.0 tuning — frequently asked questions
Supra 3.0 Stage 1 lifts the B58 Gen 2 from a stock 382 bhp · 500 Nm to 440 bhp · 680 Nm, with no hardware required. The map is flashed through the OBD port on BM3, MHD or MG Flasher and is the starting point for almost every Supra 3.0 owner — broader torque and sharper throttle response from the factory hardware.
This page covers the J29 Coupe (J29 / DB). They share the B58 Gen 2 engine and run the same core calibration, but every Supra 3.0 tune Samuel delivers is tailored to your exact car, fuel grade and installed hardware — never a base map loaded and left.
Stage 2 on the Supra 3.0 targets 480 bhp · 700 Nm and needs downpipe (OPF delete if 2018+) + intake. Everything else — turbo, fuel system, intercooler — holds within the Stage 2 figures on the B58 Gen 2.
On the right hardware spec the B58 Gen 2 in the Supra 3.0 reaches around 1000 bhp. Stage 1 and Stage 2 run the standard turbo; beyond that needs a hybrid or full big-turbo conversion with supporting fuelling, and the calibration is built bespoke per car.
Remotely. Once Samuel has your build details, the calibrated Supra 3.0 map is delivered to your flashing tool account (BM3, MHD or MG Flasher) within 24 hours and you flash it yourself over OBD in about 15 minutes. It's fully reversible — the original B58 Gen 2 stock file is supplied before you flash, so the car can return to factory at any time.
A factory warranty can be voided if BMW shows a tune caused a specific failure, so it's a personal call. Samuel's Supra 3.0 maps are calibrated to stay within the mechanical limits of the B58 Gen 2 hardware, and because the tune is reversible to stock before any dealer visit, many owners run a tuned Supra 3.0 without issue.
Keep exploring
Keep exploring Supra 3.0 tuning
Other B58 Gen 2 models we tune: M240i, M340i, M440i, Z4 M40i, X3 M40i, X4 M40i.
Engine guide
B58 Gen 2 tuning
Every B58 Gen 2 BMW we calibrate, with the full Stage 1, 2 and 3 breakdown for the engine.
Learn moreStages
Stage 1 & Stage 2 explained
What separates Stage 1 from Stage 2 on the Supra 3.0, the real-world gains and the hardware each one needs.
Learn morePricing
How tuning is priced
How the licence, off-the-shelf maps and custom calibration are priced. We quote your exact spec, never a fixed menu.
Learn moreGuide
What is bootmod3?
New to remote flashing? A plain-English explainer on the platform and how a custom map reaches your car.
Learn more