RaceChip GTS Plug & Play Tuning Box for BMW 3 Series G20 (2018+) - Piggyback ECU/Chip Tuning Power Box, Remap Alternative Stage 1 - Petrol & Diesel - Up to +30% Power & Torque - No ECU Flash - Saloon/Sedan Performance Module 320i 330i 320d 330d

Premium Plug-in Power Upgrade for BMW 3-Series G20 2018 onward

Unlock effortless acceleration, sharper throttle response and stronger mid-range pull with this premium plug-in performance module from RaceChip. Designed specifically for the BMW 3-Series G20 platform, it delivers a serious uplift in real-world pace without opening the factory ECU. If you are searching for a remap alternative, piggyback ECU, tuning module, power box, chip tuning solution or plug and play upgrade for your BMW saloon, this is the one to have.

We have installed these units on customer cars and in our own fleet. Feedback has been consistently excellent for power delivery, drivability and value. Expect a noticeable step up in everyday performance and effortless overtakes while retaining factory refinement.

Key benefits

• Gain up to 30 percent more power and torque depending on engine configuration
• Engine warranty included for 2 years for added peace of mind
• Seven adjustable optimisation maps to suit your driving style and fuel quality
• Simple plug-in fitment using pro-grade connectors - fully reversible
• No ECU flash required - ideal remap alternative for leased and warranty vehicles
• Calibrated, engine-specific mapping for BMW G20 petrol and diesel variants
• Smoother power delivery, stronger mid-range and improved in-gear acceleration

Why this module

This is RaceChip’s premium unit built on automotive-grade electronics with enhanced thermal stability and protective coatings. It features engine-specific calibration files and a refined control strategy that works with your car’s sensors to increase performance while maintaining factory safety systems. The unit supplied here does not include smartphone control, so it is ideal for drivers who want a fit-and-forget setup with on-device adjustment.

Tuning control

• Seven fine-tuning levels for a custom fit to your specific engine and modifications
• On-unit digital interface for quick adjustments without an app
• Engine Protect System Plus monitors key signals for reliability-focused optimisation

Hardware specification

• ARM Cortex-M3 processor for fast, precise signal processing
• Up to 7 analogue and digital channels for comprehensive sensor integration
• Electronics with Nano-Protect coating for durability
• FCI professional-grade plug connectors
• Ultra-resistant composite housing with secure mounting system
• Dimensions mm: Length 112 x Width 111 x Height 36

What you get

• RaceChip premium plug-in module for BMW G20
• Vehicle-specific wiring harness and OEM-style connectors
• Mounting kit and quick-start guide
• Engine warranty documentation

Compatibility

Designed for BMW 3-Series G20 models from 2018 onward. Engine-specific mapping is prepared for the exact variant you select at checkout. Power gains vary by engine, condition and fuel quality.

Installation and support

Plug and play installation can be completed at home with basic tools. For professional fitting, we recommend MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Search-friendly terms customers use

BMW G20 power upgrade, plug and play remap alternative, piggyback ECU, BMW 3-Series tuning module, power box for BMW saloon, Stage 1 alternative, chip tuning solution, torque booster, performance module, no ECU flash upgrade.

Order with confidence. This premium module delivers the surge you want with the safety you need, backed by a 2-year engine warranty and our team’s hands-on experience.