Tuning · BMW M2 (G87)
M2
S58
The S58 distilled into the smallest M chassis. 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
S58
Stock
460 bhp · 550 Nm
Stage 3 ceiling
460 bhp
About this tune
The G87 M2 (2023-present) is the new-generation M2, the first M2 with the S58 engine, replacing the S55 of the M2 Competition / M2 CS. Stock is 460 bhp / 550 Nm, sent rear-wheel through either the ZF 8HP automatic or a 6-speed manual. RWD only; no xDrive option on the G87. The smallest body BMW M fits the S58 into, and one of the most-tuned M chassis in the UK because the underlying twin-scroll twin-turbo straight-six responds exceptionally well to a remap.
BMW M2 tuning
The S58 twin-scroll twin-turbo straight-six in the G87 M2 is identical in hardware to the engine fitted to the G80 M3, G82 M4 and F97 / F98 X3 M / X4 M — same turbos, same block, same MG1 DME architecture. BMW shipped the G87 M2 with a more conservative software limiter than the M3 / M4 Competition cars, which means the Stage 1 gain is proportionally larger: 460 bhp to 650 bhp / 550 Nm to 800 Nm from OEM hardware. Stage 2 requires downpipes, midpipe and intakes, targeting 720 bhp / 900 Nm. Stage 3 is bespoke around whatever hybrid or big-turbo spec you submit. Note: G87 M2 cars require a one-time ECU unlock before any map can be flashed; that step is noted in the configurator above. Every file hand-calibrated individually — not a base map loaded and left.
The G87 M2 (2023–present) is the first M2 with the S58 engine — replacing the S55 of the M2 Competition and M2 CS with the larger, more capable twin-turbo unit. Available as the G87 coupe, RWD only, no xDrive option. Gearbox choice is either the 8-speed M Steptronic or 6-speed manual. The G87's compact dimensions and RWD-only setup mean the torque jump from Stage 1 is felt differently from the larger G80 / G82 chassis — Samuel's calibration accounts for the chassis behaviour and gearbox setup on every file.
Configurator
Build your M2 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
What the M2 map revision covers: S58 stages explained
The numbers gap between factory and hardware capability is larger on the G87 M2 than any other S58 chassis. BMW shipped the M2 at 460 bhp / 550 Nm; Stage 1 on the same factory hardware reaches 650 bhp / 800 Nm — a 190 bhp / 250 Nm gain from nothing more than a revised MG1 DME calibration. Stage 2 adds downpipes, midpipe and intakes to reach 720 bhp / 900 Nm. Add the Flex Fuel option at Stage 2 for up to 800 bhp on E50 blends. Stage 3 is bespoke: hybrid turbo builds run 800–1500 bhp depending on the hardware spec. Every map is log-reviewed after the first flash before sign-off.
Stage 1
650 bhp · 800 Nm
No hardware required. The MG1 DME is flashed via the OBD port, boost, ignition timing, fuel delivery and torque limiters all revised. BMW M2 Stage 1 unlocks 650 bhp and 800 Nm from the OEM hardware (up from 460 / 550 stock on the M2, a much larger jump than the equivalent Stage 1 on the M3 / M4 Competition simply because BMW shipped the M2 with a more conservative software limiter). The BMW M2 G87 chip tuning starting point and by far the most popular single modification on the platform.
Every M2 tune Samuel produces is calibrated individually for the specific car, fuel grade and installed hardware, not a base map loaded and left. BMW M2 tuning done correctly accounts for the G87's compact chassis behaviour, the 8HP gearbox calibration and UK fuel quality; the map is reviewed against your data logs after the first flash and revised before sign-off.
Compatibility
This M2 tune runs on Bootmod3, MHD or MG Flasher — all three flash the S58 over OBD. Compare platforms or see full S58 compatibility.
M2 specs & stage targets
BMW M2 tuning at a glance
- Engine
- S58
- Body styles
- G87 Coupe
- Chassis codes
- G87
- Production
- 2023–present
- Drivetrain
- Rear-wheel drive
- Gearbox
- 8-speed M Steptronic or 6-speed manual
- Stock output
- 460 bhp · 550 Nm
- Tuning ceiling
- ~1500 bhp on the right hardware
| Stage | Target |
|---|---|
| Stage 1 | 650 bhp · 800 Nm |
| Stage 2 | 720 bhp · 900 Nm |
| Stage 3, Hybrid Turbo | 800-1500 bhp depending on spec |
| Stage 3, Big Turbo Kit | 800-1500 bhp depending on spec |
FAQ
M2 tuning — frequently asked questions
Stage 1 on the G87 M2 targets 650 bhp / 800 Nm from the 460 bhp / 550 Nm factory baseline — a 190 bhp / 250 Nm gain from the OEM hardware, no parts required. The MG1 DME is flashed via the OBD port on BM3, MHD or MG Flasher in around 15 minutes.
This page covers the G87 M2 (2023–present), both 8-speed M Steptronic and 6-speed manual variants. Every tune Samuel delivers is calibrated for the specific car, its fuel grade and installed hardware — never a base map loaded and left.
Yes — G87 M2 cars ship with a locked MG1 DME from the factory. The ECU must be unlocked once before any map can be written; that is a one-time step and after it the M2 flashes normally over OBD. The tune is fully reversible to the supplied stock file at any time.
The calibrated M2 map is delivered to your BM3, MHD or MG Flasher account within 24 hours of payment confirmation. You flash it over OBD yourself in around 15 minutes. It is fully reversible — the original S58 stock file is supplied before you flash.
A factory warranty can be voided if BMW attributes a specific failure to the tune — that is a personal call. Samuel's M2 maps are calibrated to stay within the mechanical limits of the S58 hardware, and the tune is fully reversible to stock before any dealer visit. Many owners run a tuned G87 M2 without issue.
Keep exploring
Keep exploring M2 tuning
Other S58 models we tune: M3, M3 CS (G80), M4, M4 CS (G82), X3 M, X4 M.
Engine guide
S58 tuning
Every S58 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 M2, 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 moreBefore you flash
ECU unlock guide
Newer M2 ECUs ship locked from the factory and need unlocking before any tune. Here is how it works.
Learn more