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BMW Z4 M40i tuning

BMW Z4 M40i remapping in Bristol, Somerset and South Wales

The G29 Z4 M40i shares its B58 engine and platform with the Toyota GR Supra, and like the Supra it responds superbly to a calibration. We come to you from our Weston-super-Mare base, across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset.

BMW Z4 M40i generations we tune

Factory figures vary by market and year. We confirm your car's exact ECU and software before quoting.

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G29 Z4 M40i (2019 on)

B58 3.0 turbo straight-six, 340hp and 500Nm. Most need an ECU unlock first.

A roadster with Supra genes

The Z4 M40i uses a Bosch MG1 ECU that is usually locked. We unlock it on site, then tune it with our calibration or leave it ready for MHD.

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In a light two-seater, the extra torque makes a huge difference to acceleration, and we calibrate it to stay progressive and easy to control.

Gearbox tuning

The ZF 8-speed is mapped to suit the engine, with quicker shifts and higher torque limits.

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Common questions

Is the Z4 M40i the same as the GR Supra?

They share the B58 engine and much of the platform, and both use the MG1 ECU.

Do you tune the Z4 sDrive20i?

Yes. A Z4 sDrive20i we tuned at Stage 1 went from 184hp to 260hp.

Recent BMW jobs

BMWs we have tuned, with their figures.

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Customer feedback

What customers say on Google

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Talk through your vehicle

Find out what your car can do.

Share your registration, mileage and what you would like to improve. We're always online to quote and reply, and we'll confirm what is suitable before booking, then come to you. Fully mobile from our Weston-super-Mare base across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset.

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