BMW G87 M2 tuning Melbourne.
S58 in a shorter car. Logged properly.

Apex Performance Tuning provides performance preparation and calibration for the BMW G87 M2 from its Wantirna South workshop.

The G87 uses the S58 3.0-litre twin-turbocharged inline-six shared with the G80 M3 and G82 M4, in a shorter and more tightly packaged car. The calibration approach transfers, but thermal headroom and how the car is used matter more when deciding how far to go.

Work may include vehicle assessment, ECU-unlock coordination, engine calibration, transmission calibration on automatic vehicles, intake and exhaust hardware, spark plugs and cooling-related supporting parts. We review the complete combination before confirming a recommended package.

BMW's factory Competition calibration is deliberately conservative. Published figures sit at 375 kW and 650 Nm for Competition cars, with the CS and CSL variants stepping higher from the factory. Every one of those files is written to survive global fuel quality, emissions rules and warranty margins — which is exactly why the S58 has a reputation for responding so well to calibration.

In practice there are three sensible places to land. The correct answer for your car depends on model year, ECU status, transmission, fuel and how the car is actually used — which is why we assess the car and quote the pathway in writing before anything is booked, rather than selling a stage number off a list. Every package below is quoted with the vehicle.

• Stock — leave it as it is

  The factory S58 is already a genuinely fast, well-mannered engine. For owners who want full warranty coverage and nothing to explain, stock is a legitimate answer and we will say so to your face.

• Stage 1 — calibration only

  ECU calibration on completely stock hardware, written for the fuel you actually run and verified in data logs. On cars with a locked ECU, the unlock is handled first. Nothing mechanical changes on a healthy car. Optional transmission calibration on ZF 8HP cars sharpens shift speed and clamping. The difference is a stronger mid-range and power that holds to redline instead of tapering — without changing the car's character.

• Stage 2 — hardware and calibration together

  Downpipes and intake fitted, with supporting plug and cooling work where the car's use calls for it, and a calibration written for that exact combination. Optional transmission calibration and, where the work justifies it, verification at an external dyno facility by arrangement. This is where the powerband is genuinely reshaped rather than simply lifted. The hardware list is decided on your car, not from a catalogue.

The G87 is available with a six-speed manual or the ZF 8HP M Steptronic, and that single choice decides half the conversation.

On a manual car there is no transmission file, so the work is engine calibration and hardware. Clutch condition matters, particularly on cars that see launches or track use, and we check it before raising torque. On an automatic car, transmission calibration is available as a separate file covering shift speed, firmness and clamping pressure, and plenty of owners have it done on its own for sharper shifts without an engine calibration.

• Locked ECU

  G87 control units are locked, so an unlock step forms part of the pathway. Verified against your VIN.

• Manual G87

  Engine calibration only. Clutch and driveline condition reviewed before targets are raised.

• Automatic G87

  Engine and transmission calibration available, quoted separately, and either can be done alone.

• Track-used cars

  Cooling, oil temperature and intake air temperature logged before a target is set, not after.

A conservative calibration on a healthy stock M2 typically needs nothing beyond correct-condition plugs and fluids. The hardware conversation starts when the target rises, the fuel changes to an E-blend, or the car starts doing repeat track sessions in Melbourne summer heat.

At that point intake, cooling, charge-pipe and plug choices genuinely affect whether the calibration behaves as intended. We assess the car first — scan every module, review service history, inspect the cooling system and charge pipes, log a baseline — then recommend the combination that suits how you drive it. Anything additional is quoted in writing against the VIN and approved before it happens.

We are at Unit 4/6 Woodbine Court, Wantirna South VIC 3152, minutes from EastLink and the M1, which makes us a practical drop-off for owners across Knox, Ringwood, Glen Waverley, Wheelers Hill, Box Hill, Camberwell, Doncaster, Toorak, Brighton and the wider eastern and south-eastern suburbs.

Send your registration or VIN, transmission type, existing modifications, the fuel you intend to run and how the car is used. We confirm what is genuinely available for your specific vehicle and quote it in writing against the VIN with a line-itemised breakdown before anything is booked.

Apex does not have an in-house dyno. Dyno testing is arranged through trusted external facilities where it is genuinely required for calibration or verification work. Vehicle pickup and drop-off may be available by prior arrangement, subject to location and availability. We do not offer loan cars.

Apex Performance Tuning is an independent workshop and is not affiliated with or authorised by BMW.