Milltek Sport BMW G90 & G99 M5 Axle Back Exhaust System (NAS/ROW Spec Vehicles)

Enhance the sound, performance, and presence of your BMW G90 or G99 M5 with the Milltek Sport Axle-Back Exhaust System, designed exclusively for NAS/ROW specification vehicles. Engineered in the UK using over four decades of exhaust development expertise, this precision-crafted system transforms your M5’s character — delivering a deeper, more engaging exhaust tone and improved flow efficiency while maintaining OEM-quality fitment.

Constructed from premium 304L aircraft-grade stainless steel, this axle-back system offers exceptional durability, corrosion resistance, and long-term reliability. The enlarged 3.15” (80mm) pipework is designed to reduce back pressure and enhance throttle response, giving your S68 twin-turbo V8 a more pronounced and refined sound profile without excessive cabin drone.

Developed for enthusiasts who demand more from their M5, Milltek’s system seamlessly integrates with the factory layout, providing a clean, OE-style fit and finish. Available with a range of tailpipe designs to match your preferred aesthetic, this axle-back exhaust delivers the ideal combination of performance, tone, and craftsmanship that Milltek is globally renowned for.

(Cutting of the OE exhaust system is required during installation.)

Key Features

• Enhanced Performance: 3.15” (80mm) pipework optimises exhaust gas flow for sharper response and potential power gains.

• Refined Sound Profile: Produces a deeper, sportier tone while maintaining comfort for everyday driving.

• Premium Construction: Handcrafted from 304L aircraft-grade stainless steel for superior strength and corrosion resistance.

• Customisable Finish: Tailpipe options available to suit your preferred style.

• Precision Fitment: Designed and manufactured in the UK for a seamless OEM-quality installation.

• Proven Heritage: Backed by over 40 years of Milltek engineering expertise.

Technical Specifications

• Pipe Diameter: 3.15” / 80.00mm

• Material: 304L Stainless Steel

• Fitment: NAS/ROW Spec Vehicles

• Installation: Cutting of OE system required

Compatibility

• BMW G90 M5 Saloon (2024+)

• BMW G99 M5 Touring (2024+)
  (For NAS/ROW specification vehicles only — not compatible with OPF-equipped EU models.)