RaceChip GTS Black + App Tuning Box for BMW X3 (E83) 2003-2011 - Plug & Play Chip Tuning Power Module, Piggyback ECU Remap Alternative with Bluetooth App

BMW X3 E83 Performance Upgrade Box with App Control

Unlock the hidden potential of your BMW X3 (E83, 2003 to 2011) with this premium plug-in power module. It is the smart remap alternative for drivers who want stronger mid-range torque, quicker acceleration and a more responsive drive without opening the ECU. Designed for enthusiasts, this piggyback ECU solution brings serious punch to everyday driving and confident overtakes, all controllable from your smartphone via Bluetooth.

Customers love the difference. We run these units on our own cars and our BMW X3 clients consistently report smoother delivery, improved throttle response and effortless overtaking. If you want a proper BMW X3 tuning upgrade that is easy to install and delivers real-world gains, this is the one to choose.

Why X3 owners choose this power box

• Up to 30% more power and torque within safe reserves of your engine (figures estimated)
• Noticeably stronger pull in-gear for fast, confident overtakes
• Potential fuel saving of up to 1 litre per 60 miles thanks to torque-optimised calibration (estimate)
• Bluetooth app control for quick mode changes and fine adjustment from your phone
• Plug-in fitment that typically takes 10 to 15 minutes
• Engine protection features remain active for peace of mind

Engine-specific software features

• Motor-specific software: v2.0_GTSBlack
• 7 fine-tuning mappings to tailor the drive to your preference
• Engine Protect System + retains factory safeguards
• Warm-up timer so power comes in only after the engine is at operating temperature

Premium hardware, built for automotive use

• ARM Cortex-M3 processor for rapid signal processing
• Up to 7 analogue and digital channels for precise control
• Nano-Protect coated electronics for durability
• Pro-grade FCI connector for a secure, reliable interface
• Ultra-resistant composite housing with pro fixing system
• Dimensions in mm: L 112 x W 111 x H 36

Warranties and assurances

• 5-year product warranty
• 2-year engine warranty up to £8,000
• Warranty period: 2 years, max reading 60,000 miles, max vehicle age 5 years
• Applies even if the manufacturer’s warranty has expired

Perfect for BMW X3 E83 drivers seeking

• BMW X3 E83 tuning module and power upgrade
• Plug and play chip tuning for everyday drivability
• Remap alternative with app-based control
• Extra torque for towing and motorway cruising
• Improved MPG potential in real-world use

Installation is simple with the supplied professional connector and clear guidance. Prefer a hassle-free fit? Book expert installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote.

Notes: Performance and fuel economy figures are estimates and will vary depending on vehicle condition and usage. This unit optimises signals to the ECU and keeps built-in protection systems active.