Engine platform
BMW B58 Gen 2
3.0L Single Turbo I6 (G-Series)
B58 Gen 2 (B58TU, G-series) platform. Higher factory output with strong headroom when tuned. Choose your fuel and hardware, then add Flex Fuel / Additional Maps as needed.
Not sure which B58 you have?
Gen 1 and Gen 2 overlap by model year on 540i, M240i and Supra. The B58 tune hub lists every chassis against its generation so you can settle it before you buy.
Compare B58 generationsCars the BMW B58 Gen 2 is fitted to
Every chassis we calibrate on this engine. Where a model has its own page, the model name links to it.
| Model | Chassis | Years |
|---|---|---|
| BMW M340i / M340i xDrive tuning | G20 / G21 | 2020+ |
| BMW M440i / M440i xDrive | G22 / G23 / G26 | 2021+ |
| BMW M240i tuning | G42 | 2022+ |
| BMW 540i / 540i xDriveLCI only. The 2017-2019 pre-LCI 540i is Gen 1. | G30 / G31 LCI | 2020+ |
| BMW 840i | G14 / G15 / G16 | 2019+ |
| BMW Z4 M40i | G29 | 2019+ |
| Toyota GR Supra 3.0 tuningThe 2020 A90 is Gen 1 and takes a different file. | A91 | 2021+ |
Gen 1 and Gen 2 overlap by model year on several of these cars, so send the VIN with your intake and we confirm which one you have before quoting.
BMW B58 Gen 2 calibration stages
Each stage states the hardware it expects and the fuels it supports. Pricing is the base calibration for that stage.
Stock Turbo
$400Required hardware
- Healthy plugs/coils
- Quality fuel
Hybrid Turbo
$450Required hardware
- Downpipe
- Upgraded FMIC recommended
Big Single Turbo
$500Required hardware
- Upgraded turbo
- Fueling upgrades as required
What to expect on the B58 Gen 2
Strong midrange, stable boost control, and repeatable results via logging.
B58G What to Expect
Stock Turbo / Bolt-On
Power comes after the data.
The same discipline applies on every platform, the B58 Gen 2 included.
- 01
Component limits are respected
Targets are set against what the factory hardware on this platform can hold, so the car stays usable as a daily driver.
- 02
The calibration follows your logs
Boost target against actual, air-fuel ratio, ignition timing, knock activity and fuel pressure are read on every revision round.
- 03
Revisions continue until it is on target
Tuning is a conversation. Logs come back, the file is adjusted, and the loop repeats for as long as it takes.
- BMW B58 Gen 1 TuningB58 Gen 1 (B58B30M0) platform. Choose your fuel and hardware, then add Flex Fuel / Additional Maps as needed.
- B58 Downpipe Tune (Worldwide) | Synergy BMW TuningOptimized calibration for B58 BMWs with a high-flow or catless downpipe. Faster spool, stronger midrange, and safe diagnostics for a worldwide remote tuning workflow.
- B58 E30 Tune (Worldwide) | Synergy BMW TuningB58 tuning optimized for E30 blends. Improved knock resistance and power with fueling guidance and logging-based revisions for worldwide clients.
- B58 E85 Tune (Worldwide) | Synergy BMW TuningCustom B58 E85 calibration with fuel system assessment, boost control refinement, and datalog-driven iterations for reliable worldwide performance.
- BMW B58 Tune (Gen 1 & Gen 2)Which B58 you have, chassis by chassis, and the calibration path that follows from it.
- B58 Stage 1 Tune
- B58 Stage 2 Tune
- B58 vs N54 Tune Guide | Power, Reliability, and Upgrade PathsCompare BMW B58 vs N54 tuning potential, fueling, spool, reliability, and supporting mods for daily-driven and big-power builds.
Running something unusual?
Big turbo, port injection or an alternative fuel setup on the B58 Gen 2 is handled as a one-off calibration. Send the build and we will tell you what is workable.