Adro Inc BMW G90 & G99 M5 Gloss Carbon Fibre Rear Diffuser

Transform the rear profile of your M car with the Adro Inc Gloss Carbon Fibre Rear Diffuser for the BMW G90 & G99 M5. Expertly crafted from ultra-lightweight prepreg (dry) carbon fibre, this high-gloss diffuser delivers the perfect blend of motorsport-inspired aggression, aerodynamic function, and OEM-quality fitment. Its sculpted fins and deep contours enhance the rear-end aesthetic while optimising airflow and stability.

Developed using 3D scan data and CFD (Computational Fluid Dynamics) testing, this V1 rear diffuser integrates seamlessly with the factory rear bumper—providing a bold, track-ready look without sacrificing the clean lines of the G90/G99 M5. Whether you’re enhancing street presence or fine-tuning aerodynamics, this carbon fibre diffuser offers both style and substance.

Key Features:

• High-gloss prepreg carbon fibre construction (dry carbon)
• Lightweight, rigid, and built for long-term durability
• OEM fitment with no modifications required – designed using 3D scans
• CFD-validated to improve airflow and reduce rear-end lift
• Aggressive styling with deep fins for a race-inspired finish
• Compatible with BMW G90 & G99 M5 (2025+)

What’s Included:

• 1x Carbon Fibre Rear Diffuser
• Installation Hardware
• 3M Automotive Adhesive Tape

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.