RaceChip RS Tuning Box for BMW X3 M X3M (F97) 2019+ - S58 3.0 Twin Turbo Plug & Play Piggyback ECU | Chip Tuning Power Module | Stage 1 Remap Alternative | Non-Bluetooth | ECU Safe Performance Upgrade

Unlock serious performance from your BMW X3M F97 with the RaceChip RS power module – Non Bluetooth version. This plug-in piggyback ECU is the ideal no-map alternative to a remap for 2019-on X3 M models running the S58 engine. Expect stronger midrange punch, sharper throttle response and a more urgent surge across the rev range, all while keeping the factory ECU untouched for a fully reversible upgrade.

We run these units on customer cars and the feedback has been outstanding. If you want a proven, German-engineered performance upgrade that is simple to install and easy to tailor to your driving style, this is the one.

Why enthusiasts choose this RS module for the X3M

• Plug-in power upgrade for BMW X3M F97 2019-on, S58 3.0 twin turbo
• Six selectable calibrations via on-unit dial for tailored power delivery
• Factory ECU remains sealed, no remap required, fully reversible
• OEM-grade connectors and vehicle-specific harness for a clean, secure fit
• German engineering and premium components for reliability and consistency
• Improved drivability, torque and acceleration without compromising everyday usability
• Potential fuel savings of up to 15 percent with a careful driving style
• Non Bluetooth version for set-and-forget simplicity, no app needed

Key details

• Vehicle fitment: BMW X3 M F97, 2019 onwards
• Engine: S58 3.0 petrol twin turbo
• Installation: around 10 minutes, step-by-step instructions included
• Adjustability: six maps to fine tune the calibration to your preferences

What you will notice

• Stronger torque from low and mid rpm for effortless overtakes
• Crisper throttle response and more immediate acceleration
• Smoother, more linear delivery that complements the ZF transmission

Perfect for

• Drivers wanting a Stage 1 style uplift without flashing the ECU
• Owners who prefer a removable, warranty-friendly style upgrade
• Those seeking a high quality, plug-and-play tuning module for daily use

Installation and support

Plug-in fitting with vehicle-specific loom and OE-style connectors. Includes printed guidance for an easy home install. Prefer professional fitting or a health check on your X3M before installation

Book with MJ Modifications, Warwickshire for supply and installation. Email info@mjmodifications.co.uk for a quote and availability.

SEO and search terms our customers use

BMW X3M tuning box, X3 M F97 performance upgrade, S58 tuning module, piggyback ECU, plug and play power box, torque booster, throttle response upgrade, power module for BMW M SUV, non app tuning box, no remap required, reversible tuning, Stage 1 alternative, ECU safe power upgrade.

Choose MJ Modifications for trusted advice, fast delivery and an upgrade that delivers real-world results on the road.