Genuine BMW G20 G21 M Performance Carbon Fibre Rear Diffuser
Transform the rear of your BMW 3 Series with the Genuine BMW G20 G21 M Performance Carbon Fibre Rear Diffuser. This OEM BMW carbon fibre diffuser delivers the authentic M Performance look with factory fitment for the BMW 3 Series G20 G21, including 318d, 320d, 320i, 330d, 330e and 330i. If you are searching for a BMW G20 rear diffuser, BMW G21 rear diffuser, M Performance rear diffuser or a BMW 3 Series carbon fibre diffuser, this genuine BMW part is the perfect upgrade.
Engineered by BMW and finished in real carbon fibre, this rear diffuser adds a sharper, more aggressive motorsport-inspired aesthetic while maintaining OEM quality, durability and fit. We run these on our own cars and customer vehicles and feedback has been consistently positive on the look and the genuine BMW fit and finish.
Please note: This diffuser requires the Genuine BMW 3 Series G20 G21 M Performance High Gloss Black Rear Bumper Trim to be fitted at the same time. Sold separately.
Why choose this OEM BMW carbon fibre diffuser
- Genuine BMW M Performance styling for the G20 G21 3 Series.
- Real carbon fibre construction with OEM-grade fitment.
- Perfect visual match to other M Performance exterior components.
- Enhances the rear profile with a premium, motorsport-inspired look.
- Trusted upgrade for daily drivers and enthusiasts seeking factory-quality parts.
Compatibility
BMW 3 Series G20 G21 (2018+):
- 318d
- 320d
- 320i
- 320ix
- 330d
- 330dx
- 330e
- 330i
- 330ix
Fitting and installation
Professional fitting is recommended. For installation in the UK, we can fit this at Nforcd, Warwickshire. Request a fitting quote at Sales@nforcd.com.
Compatibility check before dispatch
We verify compatibility before shipping. Provide your UK registration number or the last 7 digits of your VIN at checkout to ensure the part fits your vehicle.
Part number
BMW Part No: 51192455819
Manufactured by
BMW. Genuine BMW Performance Parts.
Warranty
Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a VIN is provided at checkout on compatible vehicles.
Keywords to help you find the right part
BMW G20 rear diffuser, BMW G21 rear diffuser, BMW 3 Series carbon fibre rear diffuser, BMW OEM diffuser, M Performance rear diffuser G20, M Performance diffuser G21, BMW 330e diffuser, BMW 330i diffuser, BMW 320d diffuser, BMW 318d diffuser, Genuine BMW rear valance, carbon fiber diffuser BMW 3 Series, BMW 3 Series G20 G21 diffuser 2018+.
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