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Home / ECU Remapping / BMW M4 GTS
S55 Engine

BMW M4 GTS

F82

The F82 M4 GTS with its water-injected S55 producing 493 bhp from the factory. A rare and special car that still has headroom for ECU optimisation.

493 Stock BHP
550 Stage 1 BHP
620+ Stage 3 Ceiling
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BMW M4 GTS F82
Performance Stages

S55 Tuning Stages

All power figures are average estimates based on typical results. Actual gains depend on vehicle condition, fuel quality and supporting modifications.

01

Stage 1

520-550 bhp

Software only. No hardware changes required. Custom ECU calibration on fully standard engine.

  • Custom map written in-house
  • No additional parts needed
  • Fully reversible
02

Stage 2

560-590 bhp

Calibrated for bolt-on modifications. Downpipe, intake and supporting hardware.

  • Requires supporting hardware
  • Mapped to your specific mods
  • Data-logged and validated
03

Stage 3

620+ bhp

Full custom calibration for serious builds. Hybrid turbos, uprated fuelling and bespoke mapping.

  • Hybrid or upgraded turbo
  • Uprated fuel system
  • Bespoke build calibration

Ready to Tune Your M4 GTS?

Get in touch to discuss your build. Every map is written in-house and tailored to your car.

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