Performance M
RaceChip GTS+ App Tuning Box for BMW X3 (E83) 2003-2011 - Plug & Play Piggyback ECU, Performance Chip & Power Module - Remap Alternative, Multi-Map, Up to +30% BHP/Torque - Petrol & Diesel
RaceChip GTS+ App Tuning Box for BMW X3 (E83) 2003-2011 - Plug & Play Piggyback ECU, Performance Chip & Power Module - Remap Alternative, Multi-Map, Up to +30% BHP/Torque - Petrol & Diesel
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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BMW X3 E83 2003-2011 Performance Upgrade - App-controlled piggyback ECU
Unlock serious gains on your BMW X3 E83 with this GTS+ app-enabled power module. Expect a sharper drive, stronger mid-range pull and effortless overtakes with increases of up to 30 percent in bhp and torque on supported engines. It is a high-quality, plug-in performance solution that keeps the factory ECU untouched, giving you a reversible, warranty-friendly alternative to a remap with instant results and smartphone control.
We have run this unit on our own cars and supplied it to many happy customers. Feedback has been consistently excellent for usability, build quality and the way it transforms day-to-day drivability.
Why enthusiasts choose this tuning module for the BMW X3 E83
- Up to 30 percent more power and torque for confident acceleration and easier overtaking
- Wireless smartphone control via the companion app for on-the-fly adjustments
- Engine cover for 2 years included for extra peace of mind
- Multiple calibration stages to tailor response to your specific engine and driving style
- Refined delivery with improved throttle response and usable real-world performance
- Reversible plug-in upgrade - a great alternative to a Stage 1 remap
Vehicle-specific software
- Calibrations developed for the X3 E83 platform
- Adjustable multi-map setup to suit mileage, fuel quality and engine characteristics
- Engine Protect System + for robust safeguarding under load
- Digital interface for easy, precise adjustments
Robust hardware you can rely on
- High-speed ARM Cortex-M3 processor for fast, accurate signal processing
- Up to 7 analogue and digital channels for detailed control
- Nano-protect coated electronics for durability
- OEM-grade FCI connector for secure, reliable connectivity
- Ultra-tough composite housing with pro fixing system
- Dimensions: 112 x 111 x 36 mm
Perfect for owners searching for
- BMW X3 E83 tuning box
- BMW X3 2003-2011 performance module
- Plug and play chip tuning for BMW X3
- Piggyback ECU upgrade for BMW diesel or petrol
- Remap alternative with app control
- Increase bhp and Nm safely on BMW X3
Compatibility
Designed for BMW X3 E83 - 2003 to 2011. If you are unsure about engine compatibility, get in touch and we will confirm fitment for your specific vehicle.
Professional fitting
Want it installed by specialists who know these cars inside out? Book installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and availability.
Note: Performance figures depend on engine variant and condition.
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