RaceChip S Tuning Box - Z4 (G29) / 2018-

BMW Z4 G29 Performance Upgrade Module 2018 onwards

Unlock effortless pace and stronger mid‑range pull in your BMW Z4 G29 with this premium plug‑in power module. Engineered in Germany and calibrated specifically for your engine, it delivers a serious step up in usable performance while maintaining factory refinement. Expect gains of up to 20 percent in power and torque alongside potential fuel savings of up to 10 percent, giving you quicker overtakes and smoother cruising with fewer gear changes.

Why enthusiasts choose this upgrade

• Up to 20 percent more power and torque for sharper real‑world acceleration and stronger in‑gear pull
• Save as much as 10 percent on fuel thanks to improved efficiency and earlier upshifts
• Five user‑selectable maps via an easy rotary dial to fine tune the driving feel to your preference
• Engine‑specific calibration for the Z4 G29 platform for optimal results
• German‑made components with OEM‑grade safety connectors for dependable reliability
• Plug in and drive in around 10 minutes with the included instructions
• Engine Protect System for added peace of mind

A smarter alternative to a traditional remap

This add‑on control unit works alongside your factory ECU to optimise key engine parameters with a dedicated mini‑computer. By precisely reading and adjusting multiple signals in real time, the module enhances output and efficiency within the relevant rev range. The result is a more responsive Z4 that pulls harder and can cruise at lower revs, all while retaining the smoothness you expect.

Dial in your preferred setup

Arrives pre‑set for your engine. Use the tool‑free rotary selector to choose from five maps for a gradual adjustment in performance to match your driving style, from relaxed efficiency to spirited road use.

Built to last

• ARM Cortex‑M3 processor for fast and accurate signal processing
• Up to three analogue and digital channels for precise control
• Electronics with nano‑protect coating
• OEM‑grade FCI safety connector
• Ultra‑resistant plastic housing with a practical fastening system
• Dimensions mm: L 87 x D 95 x H 36

What’s in the box

• Performance tuning module
• Vehicle‑specific wiring loom
• 4 cable ties
• Installation guide

Real‑world results our customers love

We have fitted and run these units on customer cars and our own demonstrators. Feedback is consistently positive, highlighting stronger mid‑range torque, smoother delivery and a more engaging drive. It is a simple, effective power upgrade for the Z4 G29 that keeps day‑to‑day usability intact.

Fast installation and professional fitting

Supplied with a clear step‑by‑step guide, most owners install in around 10 minutes. Prefer expert fitting and setup. Book with MJ Modifications in Warwickshire and we will take care of everything for you. Request a quote at info@mjmodifications.co.uk.

Search‑friendly compatibility

Designed for BMW Z4 G29 2018 onwards. Ideal if you are looking for a BMW Z4 power module, plug‑in ECU piggyback, remap alternative, chip tuning kit, torque upgrade, bhp increase, or performance tuning box for the Z4 roadster.

Software: Engine‑specific v2.0_S with Engine Protect System and five adjustable maps

Hardware: ARM Cortex‑M3, up to 3 analogue and digital channels, nano‑protected electronics, FCI connector, ultra‑resistant housing

Made in Germany