Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Unlock the full potential of your 2019-2024 BMW 320i, 330i, 420i, or 430i with the German Car Accessories GCA Performance ECU Tune, specifically engineered for BMW models equipped with the 2.0L Turbocharged B46 and B48 engines. Designed to deliver noticeable gains in horsepower, torque, and throttle response, this ECU calibration transforms the way your BMW accelerates and performs while maintaining smooth, everyday drivability.
Developed by German Car Accessories under the GCA Performance lineup, this custom ECU tune sharpens throttle response, increases mid-range torque, improves top-end power, and optimizes the entire powerband for stronger and more consistent acceleration. Whether you're driving on the street or enjoying spirited weekend drives, you'll experience quicker response and enhanced engine performance throughout the RPM range.
Each calibration is tailored to your selected fuel octane and includes premium tuning features such as configurable cold start settings, factory speed limiter removal, enhanced exhaust burble options, and support for aftermarket downpipes with check engine light suppression for off-road use only.
For added peace of mind, German Car Accessories securely saves your original factory ECU file, allowing your vehicle to be returned to stock software at any time. Every ECU tune is backed by a 1-Year German Car Accessories Warranty.
Vehicle Fitment
This GCA Performance ECU Tune fits the following BMW models equipped with the 2.0L Turbocharged B46 or B48 engine:
2019-2024 BMW 3-Series (G20)
- BMW 320i
- BMW 330i
- BMW 330i xDrive
2021-2024 BMW 4-Series (G22/G23/G26)
- BMW 420i Coupe
- BMW 430i Coupe
- BMW 430i xDrive Coupe
- BMW 430i Convertible
- BMW 430i xDrive Convertible
- BMW 430i Gran Coupe
- BMW 430i xDrive Gran Coupe
Compatible chassis:
- G20 BMW 3-Series Sedan
- G22 BMW 4-Series Coupe
- G23 BMW 4-Series Convertible
- G26 BMW 4-Series Gran Coupe
Engine Compatibility:
- 2.0L Turbocharged B46 Engine
- 2.0L Turbocharged B48 Engine
Key Features
- Manufactured by German Car Accessories
- Part of the GCA Performance lineup
- Custom ECU calibration for B46 and B48 engines
- Up to 60 HP increase
- Up to 75 lb-ft torque increase
- Sharper throttle response
- Improved mid-range and top-end performance
- Octane-specific tuning calibration
- Factory speed limiter removal
- Configurable cold start (On/Off)
- Adjustable or extended exhaust burble options
- Downpipe readiness with check engine light suppression (off-road use only)
- Factory ECU data securely backed up
- 100% reversible calibration
- Stage 1 and Stage 2 tuning available
- 1-Year German Car Accessories Warranty
Performance Gains
- Horsepower Increase: Up to +60 HP
- Torque Increase: Up to +75 lb-ft
Tuning Options
- Stage 1: Factory Downpipes
- Stage 2: GCA Performance Downpipes
- Stage selection is confirmed after purchase.
- No additional charge for Stage 2 tuning.
Tuning Instructions
- Installation instructions are emailed after purchase.
- Remote tuning is completed using the included ENET cable.
- ECU unlock instructions are provided if the ECU Unlock service is purchased.
- BMW models built after June 2020 (06/2020+) feature factory-locked ECUs. If the ECU Unlock service is not purchased, the customer must arrange an ECU unlock before tuning.
Specifications
- Engine Compatibility: 2.0L Turbocharged B46 & B48
- Installation Method: Remote ECU Flash
- Connection: ENET Cable Included
- Calibration: Octane-Specific
- Warranty: 1-Year German Car Accessories Warranty
