RaceChip GTS Black + App Bluetooth Tuning Box for BMW M4 / M4 Competition (F82/F83) 2013+ – S55 Plug & Play Piggyback ECU Power Module – Performance Chip Remap Alternative – Smartphone Control

RaceChip GTS Black with App Control for BMW M4 F82 F83 2013 onwards

Unlock serious performance on your BMW M4 without a remap. This premium plug-in power module delivers a substantial uplift in bhp and torque on the S55 engine, while keeping factory safeguards intact. With Bluetooth connectivity for your smartphone, refined calibration and robust German hardware, it is the ultimate piggyback ECU upgrade for daily driving and spirited use.

Designed as a simple plug-in alternative to an ECU tune, the GTS Black is tailored to your specific vehicle, enhancing output and drivability from within the engine’s built-in reserves. Expect a sharper, stronger M4 that pulls harder across the rev range and feels more responsive under load. Figures are estimated, but the improvement is undeniable on the road.

Why M4 owners choose this performance module

• Power increase you can feel - calibrated gains for strong mid-range and top-end pull
• Up to around 30 percent uplift in performance potential - within safe operating windows
• Reduced fuel use possible - as much as 1 litre saved per 60 miles depending on driving style and conditions
• Bluetooth app control - adjust settings from your phone and tailor response
• Keeps OEM protection strategies active - peace of mind for everyday use
• Fast, reversible installation - typically 10 to 15 minutes

App features and calibration

• Vehicle-specific software: v2.0_GTSBlack
• Seven fine-tuning maps to suit different conditions
• Engine Protect System Plus keeps safety thresholds in place
• Warm-up timer ensures optimisation only after the engine reaches temperature

Hardware highlights

• ARM Cortex-M3 processor for fast, precise signal processing
• Handles up to seven analogue and digital channels for accurate control
• Electronics protected by nano coating for durability
• Automotive-grade FCI connector for a secure, reliable link
• Heat-resistant composite enclosure with pro mounting system
• Compact size for neat fitment - 112 x 111 x 36 mm

Warranty and cover

• 5-year product warranty on the unit
• 2-year engine cover up to £8,000
• Eligibility guide: vehicle age up to 5 years, mileage reading up to 60,000 miles
• Applies even if the manufacturer warranty has expired

Real-world results

We have fitted this unit to multiple customer M4s in our workshop and the feedback has been consistently positive. Owners love the stronger acceleration, smoother surge and the convenience of in-app adjustment. It is a high-quality upgrade that enhances performance while remaining fully reversible.

Installation and fitting options

Home installation is straightforward with the plug-in harness. For professional fitting or setup, choose MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and booking.

Notes: Performance and fuel economy improvements are estimated and will vary by vehicle condition, fuel quality and driving style. All claims are within the manufacturer’s guidelines and safety parameters.