

Milltek Sport
Milltek Sport BMW G90 & G99 M5 Axle Back Exhaust System (UK/EU Spec Vehicles)
Choose options
Sign Up To Our Mailing List
Elevate the sound and presence of your BMW G90 or G99 M5 with the Milltek Sport Axle Back Exhaust System, meticulously engineered for UK and EU specification vehicles. Crafted in the UK using premium-grade stainless steel, this performance exhaust offers an enhanced, deeper exhaust note while maintaining compatibility with factory emissions equipment and electronic valve control.
Designed to integrate seamlessly with the factory rear silencer layout, the Milltek system provides a more engaging driving experience and refined acoustic tone without compromising daily drivability. Whether you're looking to improve exhaust flow or simply want a more expressive soundtrack, this system delivers exceptional quality and fitment that is synonymous with the Milltek Sport name.
Key Features
- Precision-built axle back system for G90 & G99 M5 (UK/EU spec)
- Made from high-grade T304 stainless steel
- Compatible with OEM valve control for variable sound output
- Engineered for enhanced tone, flow, and performance
- Designed and manufactured in the UK
Technical Specifications
- Vehicle Fitment: BMW G90 M5 & G99 M5 (2024+), UK/EU specification
- Material: T304 stainless steel
- Configuration: Axle back system with valve integration
- Tailpipe Options: Multiple finishes available (sold separately)
- Emissions Compliance: Retains OEM emissions equipment
Additional Notes
- Designed specifically for UK/EU spec vehicles – not suitable for US models
- Professional installation recommended for best results
Compatible Vehicles
- BMW G90 M5 Saloon (2024+ UK/EU Spec)
- BMW G99 M5 Touring (2025+ UK/EU Spec)
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.
PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.