RaceChip GTS Plug & Play Tuning Box | Chip Tuning Piggyback ECU Power Box for BMW Z4 (G29) 2018+ – Remap Alternative, Non-Bluetooth Hardwired, 7 Maps – Fits sDrive20i 30i M40i (B48/B58)

Plug-in performance module for BMW Z‑Series roadster 2018 onwards

Unlock serious gains with the GTS plug-in power upgrade from RaceChip. This hardwired version delivers up to 30% extra power and torque while keeping factory safety systems intact. It is a fast, reversible and warranty-backed alternative to a traditional remap, engineered to make your daily drive feel like a proper sports car.

We have installed and driven this unit ourselves and on customer cars. The feedback is consistent: stronger mid‑range punch, quicker throttle response and effortless overtakes, all with smooth OEM-like drivability.

Why enthusiasts choose this upgrade

• Up to 30% more power and torque – noticeable acceleration gains across the rev range
• Seven selectable calibrations – tailor the delivery to suit your driving style
• Digital user interface – simple on-unit adjustment without phone pairing
• Engine Protect System Plus – keeps factory safety thresholds in place
• No ECU opening – fully plug and play, reversible for servicing or resale
• Includes a 2‑year engine warranty – extra peace of mind for spirited driving

Engineered hardware. Motor‑specific software.

• ARM Cortex‑M3 processor for rapid, precise signal control
• Up to 7 analogue and digital channels for detailed sensor management
• Nano‑Protect coated electronics for durability in harsh engine bays
• FCI pro‑grade connectors with an ultra‑resistant composite housing
• Professional fixing system for a secure, tidy install
• Dimensions: 112 mm L x 111 mm W x 36 mm H

Optimised for your specific engine

No two powerplants behave exactly the same. Manufacturing tolerances, mileage and fuel quality all influence output. The GTS module uses engine‑specific calibrations with seven fine‑tune levels so you can match the mapping to your car’s characteristics for the best balance of performance and refinement.

Compatibility

Designed for the BMW Z‑Series G29 platform from 2018 onward. A superb plug-in tuner and remap alternative for owners seeking a safe, reversible power increase.

Fitting and support

DIY-friendly plug-in installation with OEM‑style connectors. Prefer professional fitting. Book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search-friendly terms to help you find this product

BMW performance upgrade. Plug and play chip tuning. Piggyback ECU. Power box. Torque booster. Stage 1 style gains. Remap alternative. Engine tuning module for BMW roadster 2018+. Non‑Bluetooth GTS unit without app control.