RaceChip RS+App Tuning Box - X4 (G02) / 2018-

Unlock serious performance for your BMW X4 G02 2018 onward with a premium plug-in power module and smartphone control

Looking for a noticeable lift in power and response on your BMW X4 without a full remap? This proven plug-and-play engine tuning module from RaceChip gives your X4 the punch it deserves, along with easy Bluetooth control via your phone. It is engineered specifically for the G02 platform and comes pre-configured for your engine for a clean, simple install and an OEM-like finish.

We have fitted and used this unit ourselves and our customers love the transformation. Expect sharper throttle feel, stronger mid-range pull and a more engaging drive. It is a smart alternative to traditional ECU remapping, giving you adjustable performance with the convenience of app control.

Why enthusiasts choose this upgrade

• Plug-in performance module for BMW X4 G02 2018 onward
• Control and fine-tuning from your smartphone via Bluetooth
• Six adjustment levels to tailor power delivery to your preference
• Vehicle-specific calibration for the X4 platform
• High quality connectors and hardware made in Germany
• Quick install in around 10 minutes with step-by-step guidance
• Potential fuel savings of up to 15 percent with sympathetic driving

Key features at a glance

• Engine-specific optimisation for petrol and diesel variants of the BMW X4 G02
• Professional-grade harness with secure, OE-style plugs
• On-device dial for six-stage fine tuning to match your driving style
• Bluetooth connectivity for easy adjustments through the mobile app
• Durable, high-spec electronics designed for automotive environments

What you get

• RaceChip RS control unit with engine-specific wiring
• Installation instructions for a straightforward, reversible fit

Installation and support

DIY-friendly plug-in fitment with no cutting of wires. Want it installed professionally? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

Who is it for

Ideal for BMW X4 G02 owners who want a responsive, strong-feeling power upgrade, better acceleration and confident overtakes, plus the flexibility to tweak settings from their phone. A great choice if you are considering a remap alternative or a Stage 1 style improvement that is easy to install and remove.

Search-friendly info

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Note: Designed for standard, well-maintained vehicles. For best results, follow the supplied setup guidance and use quality fuel where applicable.