Scorpion BMW G90 & G99 M5 Axle Back Exhaust System

Scorpion BMW G90 & G99 M5 Axle Back Exhaust SystemTransform your BMW G90 or G99 M5 with the Scorpion Axle Back Exhaust System a premium, UK engineered performance upgrade designed to unlock the full potential of the S68 twin turbo V8 engine. Precision built from T304 motorsport grade stainless steel, this system delivers exceptional sound, performance, and quality while retaining full compatibility with the cars factory driving modes and electronic valve control. The twin 80mm equal length design

Transform your BMW G90 or G99 M5 with the Scorpion Axle Back Exhaust System — a premium, UK-engineered performance upgrade designed to unlock the full potential of the S68 twin-turbo V8 engine. Precision-built from T304 motorsport-grade stainless steel, this system delivers exceptional sound, performance, and quality while retaining full compatibility with the car’s factory driving modes and electronic valve control.

The twin 80mm equal-length design optimises exhaust flow and balances pressure between the left and right banks for improved performance and a distinctive, deep exhaust tone. Integrated electronic exhaust valves and actuators ensure seamless operation with all OEM settings, allowing you to switch effortlessly between refined cruising and a more aggressive, resonant sound at the touch of a button.

Whether you prefer a stealthy finish or a motorsport-inspired aesthetic, the system is available with a choice of four 100mm Daytona or Ascari tailpipes, each designed to complement the M5’s bold design.

Handcrafted in the UK and dyno-tested for precision, Scorpion’s Axle Back Exhaust combines intelligent engineering with stunning craftsmanship, ensuring reliability, durability, and a noticeable improvement in both tone and throttle response.

R44 Performance collaborated with Scorpion for the development of this GPF-back exhaust system to ensure it provides the perfect combination os sound, performance, quality, durability & value for BMW G9X M5 owners.

Key Features

• Twin 80mm Axle / GPF back design – enhances flow, tone, and performance

• Constructed from T304 motorsport-grade stainless steel

• Fully compatible with OEM electronic valve control and driving modes

• Includes 2x electronic exhaust valves and actuators

• Improves throttle response and sound clarity

• Choice of 4 x 100mm tailpipe finishes:

  • Polished Daytona

  • Black Ceramic Daytona

  • Carbon Fibre Ascari

• Direct bolt-on fitment – no modifications required

• Designed, developed, and handmade in the UK

• Precision TIG-welded for strength and reliability

Compatibility

• BMW G90 M5 Sedan

• BMW G99 M5 Touring

Perfect for both daily driving and performance applications, this Scorpion Acle Back System offers the ideal balance between power, refinement, and premium build quality.

Technical Specification

• Pipe Diameter: 80mm (twin)

• Configuration: Axle / GPF back exhaust

• Material: T304 stainless steel

• Valve Control: Compatible with OEM electronic actuators

• Tailpipe Options: Polished Daytona / Black Ceramic Daytona / Carbon Fibre Ascari

Why Choose Scorpion?

Handcrafted in the UK using decades of motorsport expertise, Scorpion Exhausts are engineered for precision, performance, and endurance. Every system undergoes rigorous R&D and dyno testing to ensure class-leading results — offering enthusiasts an unparalleled driving and acoustic experience.