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Home / ECU Remapping / BMW Z4 sDrive20i
B48 Engine

BMW Z4 sDrive20i

G29

The G29 Z4 sDrive20i with the B48 engine. A fun roadster that gains noticeable performance from ECU optimisation at Stage 1.

197 Stock BHP
250 Stage 1 BHP
300+ Stage 3 Ceiling
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BMW Z4 sDrive20i G29
Performance Stages

B48 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

230-250 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

260-280 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

300+ 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 sDrive20i?

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

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