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Home / ECU Remapping / BMW Z4 28i
N20 Engine

BMW Z4 28i

E89

The E89 Z4 28i with the N20 turbo four. ECU calibration adds useful power and improves throttle response for a more engaging drive.

245 Stock BHP
290 Stage 1 BHP
340+ Stage 3 Ceiling
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BMW Z4 28i E89
Performance Stages

N20 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

270-290 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

300-320 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

340+ 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 Z4 28i?

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

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