RaceChip S Plug & Play Tuning Box for BMW X3 (G01) 2017+ | ECU Piggyback/Remap Alternative Performance Chip Power Box | Stage 1 Power & Torque Upgrade | Petrol & Diesel

BMW X3 G01 2017 onwards Plug-in Power Upgrade Module by RaceChip S

Unlock effortless real-world pace with this plug-in performance module for the BMW X3 G01. A true remap alternative, this piggyback ECU delivers stronger acceleration, punchier mid-range and smoother overtakes while keeping the factory ECU software untouched. Built in Germany with high-grade electronics, it is a simple, reversible upgrade that transforms everyday driveability.

Why enthusiasts choose this upgrade

• Up to 20 percent more power and torque for rapid in-gear response
• Potential fuel savings of up to 10 percent with earlier upshifts and lower revs
• Five user-adjustable levels via a dial for fine control over the calibration
• Vehicle-specific optimisation for BMW X3 G01 engines for a factory-like feel
• Engine Protect System monitors key parameters for peace of mind
• Premium automotive-grade connectors and loom for a secure, OE-style fit
• Robust, nano-protected electronics in an ultra‑resistant housing
• Quick, non-invasive install in around 10 minutes with step-by-step instructions

Our team at MJ Modifications has fitted and run this unit on multiple customer X3 G01 models. Feedback is consistently positive about the extra shove through the mid-range, improved throttle response, and how refined the delivery feels in daily use.

Ideal for drivers searching for

BMW X3 G01 performance upgrade, plug and play ECU tuner, piggyback ECU, remap alternative, chip tuning unit, diesel tuning box, petrol power box, torque booster, acceleration upgrade, Stage 1 style power increase, BMW SUV tuning, non-invasive engine upgrade.

How it works

The additional control unit intercepts and finely optimises engine management signals using dedicated, engine-specific software. The result is a noticeable increase in torque within the most-used rev range, allowing earlier gear changes and relaxed cruising with improved efficiency. Installation is plug in and drive, and removal is just as easy.

Software

• Engine-specific calibration: v2.0_S
• Five adjustable performance levels
• Engine Protect System for safe operation

Hardware

• ARM Cortex‑M3 processor
• Up to three analogue and digital channels
• Nano-protected circuitry
• Automotive safety connector by FCI
• Ultra‑durable plastic enclosure
• Basic fastening system
• Dimensions in mm: L 87 x D 95 x H 36
• High quality components made in Germany

What you receive

• RaceChip S control module
• Model-specific wiring loom
• Four cable ties
• Printed fitting guide

Fitting and support

DIY-friendly with a straightforward install using the supplied harness. Prefer professional installation. Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and fitment check for your BMW X3 G01 2017 onwards.

Searching for BMW X3 tuning, G01 power upgrade, ECU tuning box for BMW, BMW SUV torque increase, or BMW X3 2017 performance chip. This plug-in module is the smart, reversible choice for more pace and efficiency without flashing the ECU.