Milltek 80mm Resonated Cat-Back Exhaust - Audi 8V RS3 - Polished Tips - SSXAU890

The Milltek 80mm Resonated Cat-Back Exhaust System is engineered as a direct factory replacement for the Audi 8V RS3 (2017+). Hand-finished T304L stainless steel construction with mandrel-bent piping delivers improved exhaust flow while maintaining OEM+ fitment using factory hangers and attachment points.

This resonated system is tuned to eliminate drone at cruise while preserving full-throttle character. The 3.15" (80mm) bore facilitates measurable flow gains and a more pronounced tone compared to the stock system. CNC-formed polished tips finish the installation cleanly. No modification required-bolt-on compatibility with all OEM components.

Specifications

• Pipe diameter: 80mm (3.15")
• Material: T304L stainless steel, hand-finished
• Design: Resonated (drone-reduced, engineered tone character)
• Fitment: Direct factory replacement, uses OEM hangers
• Tips: Polished stainless, CNC-formed

Fitment

• Audi 8V RS3 (2017+)

Every system is decibel-tested and tuned for the specific resonance point of this platform.

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Specifications

• Pipe diameter: 80mm (3.15")
• Fitting time: 2 to 2.5 hours, including removing the factory system
• E-marked for road use

Fitment

• Audi > RS3 > Saloon/Sedan (8V MQB) > 2017 and Later

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.