Masata MST7003 BMW 420i G22 4 Series Coupe (2020+) Plug & Play Tuning Box, Piggyback/Add-On ECU Tuner, Stage 1 Performance Chip Power Box +70hp +74Nm - Remap Alternative for 2.0T B48

Masata MST7003 Quick-Fit Power Upgrade for BMW G22 420i

Transform the way your 2020 on BMW 420i drives with the Masata MST7003 add-on controller. This easy plug in performance unit delivers serious gains, sharper response and stronger mid-range pull without opening the ECU or committing to a flash map. If you want fast, reversible power that you can install and remove in minutes, this is the smart upgrade for the G22 coupe.

Dyno-Proven Gains

• +70 hp increase
• +74 Nm torque surge
• Crisper throttle feel for effortless acceleration
• Stronger pull through the rev range for confident overtakes

Why Enthusiasts Choose This Masata Unit

• No ECU removal or coding required
• Non-permanent fit, revert to stock in minutes
• Sealed alloy casing for year round reliability
• Masata build quality with Lifetime Warranty
• Ideal alternative to a software remap if you prefer a reversible solution

Vehicle Compatibility

BMW 4 Series G22 420i 2020 onwards

Part Number

MST7003

Real World Results

At MJ Modifications we have installed this unit on customer cars and the feedback has been excellent. Immediate power, smoother delivery and a more exciting drive, all while keeping installation simple and reversible.

Fitting Service

Prefer professional installation or want it supplied and fitted as a package? Book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

What You Get

• Masata MST7003 performance unit
• Vehicle specific loom for quick connection
• Installation guide

Search-Friendly Terms Customers Use

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