AC Schnitzer BMW G20 G21 320d Performance Upgrade
Unlock serious real-world performance with the AC Schnitzer BMW 320d tuning module for G20 and G21 3 Series. This plug-and-play AC Schnitzer performance upgrade is the smart, warranty-friendly way to increase power and torque on your BMW 320d without altering the factory ECU software. If you are searching for BMW 320d tuning, BMW G20 320d remap alternative, BMW 320d diesel tuning box, BMW 3 Series G20 G21 power upgrade or BMW 320d piggyback ECU, this AC Schnitzer solution delivers OEM-level quality, reliability and drivability.
Developed by BMW specialists with over 30 years of experience, the AC Schnitzer module retains your standard car software and communicates via CANBUS to safely deliver a substantial, efficient performance boost. The result is stronger mid-range torque, smoother acceleration and confident overtaking, all while keeping servicing and dealer updates simple. We have installed this upgrade for BMW 320d customers and feedback has been excellent on performance, refinement and ease of use.
Why choose AC Schnitzer for your BMW 320d G20 G21
- Warranty-friendly BMW 320d tuning box for G20 and G21 3 Series
- Retains standard ECU software for easy BMW dealer servicing and updates
- Secondary ECU accesses CANBUS for safe, reliable power delivery
- OEM+ driveability with smooth, effortless performance and safer overtaking
- Efficient performance with no increase in emissions in most cases
- Enhance a lower tax bracket car without paying more tax
- Premium quality from AC Schnitzer, renowned BMW tuning experts
- Can be supplied and installed at selected BMW dealers and specialists across the UK and Ireland
Warranty and peace of mind
Every AC Schnitzer performance upgrade comes with a unique, worry-free warranty solution that runs alongside your BMW factory warranty. A 3 year warranty from AC Schnitzer covers the tuned engine and drivetrain from the date of first registration, subject to conditions. For cars with OPF tested to WLTP standard, the filters are included within the scope of the warranty.
In the UK, AC Schnitzer products carry a two-year manufacturer's warranty, or until the end of the 3 year BMW warranty period, whichever is longer.
Compatibility
- BMW 3 Series G20 G21 320d (2018+)
Installation and fitting
Fitting instructions are provided in German and English. 12AW time (approximately 1 hour) is recommended. This is a plug-and-play installation with no coding required, making it an ideal BMW 320d remap alternative for G20 and G21 owners who want performance without ECU flashing.
Download the AC Schnitzer installation guide
Prefer professional installation. We can fit this AC Schnitzer BMW 320d performance upgrade at Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Product details and registration
- Standard car software is retained so your BMW can be serviced and updated as usual
- Secondary ECU solution safeguards reliability and driveline components
- Product registration is required after purchase. We will contact you for details
- Designed to deliver strong torque and power where you use it most
Part Number
121410420-01-36
Trusted BMW 320d tuning from AC Schnitzer
Choose the AC Schnitzer BMW G20 G21 320d performance upgrade for a proven, dependable and warranty-friendly power increase. If you are comparing BMW 320d remap vs tuning box, this AC Schnitzer module offers an OEM-grade solution with superior drivability, easy installation and outstanding customer satisfaction.
Note: Conditions apply to all warranties. Product registration required.