RaceChip RS Tuning Box - Z4 (E89) / 2009-

BMW Z4 E89 Performance Module by RaceChip RS (without Bluetooth)

Unlock stronger acceleration, added torque and a more responsive drive in your BMW Z4 E89 with this plug-in performance module. The RS unit delivers vehicle-specific calibration in a compact, German‑engineered package, giving your 2009-on Z4 the power upgrade it deserves without permanent changes to your ECU.

Why enthusiasts choose this plug-in power upgrade

• Noticeable gains in power and torque for quicker overtakes and a livelier mid‑range
• 6 user-selectable maps via the front rotary dial to suit your driving style
• Easy fitment in around 10 minutes with model-specific guidance
• Engine‑matched calibration supplied out of the box for the Z4 E89 platform
• Automotive-grade, safety connectors for factory-level reliability
• Potential fuel saving of up to 15% with sensible driving
• Wired edition (no smartphone control) for simple, set‑and‑forget operation

Optimised for the BMW Z4 E89 (2009 onwards)

This inline tuning module is tailored for the Z4 E89 generation, providing a smart, plug-and-play alternative to a traditional remap. It enhances performance while retaining the car’s original control unit, so it’s ideal for drivers who want extra punch and drivability without invasive software flashing.

Engineered quality you can trust

High-quality components, robust housing and precision mapping deliver dependable, repeatable results. Our team has installed these on customer Z4s with excellent feedback on responsiveness and everyday usability.

Key search terms customers use

BMW Z4 E89 power module, piggyback ECU, plug and play tuner, remap alternative, engine tuning unit, chip box upgrade, performance chip, torque booster, throttle response upgrade, German tuning box, petrol turbo tuning, BMW Z4 tuning upgrade.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. To request a fitting quote or advice, email info@mjmodifications.co.uk.

Note: This is the RS wired version without Bluetooth control. Supplied with 6 adjustable map settings via the unit’s dial.