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Home / ECU Remapping / BMW M4 CS
S58 Engine

BMW M4 CS

G82

The G82 M4 CS starts with 550 bhp from the factory-uprated S58. Custom ECU calibration pushes this further with significant gains available at every stage.

550 Stock BHP
640 Stage 1 BHP
750+ Stage 3 Ceiling
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BMW M4 CS G82
Performance Stages

S58 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

600-640 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

650-700 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

750+ 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 CS?

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

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