Milltek 80mm Race Non-Resonated Cat-Back - Audi RS3 8Y - SSXAU974

The Milltek 80mm Race Non-Resonated Cat-Back Exhaust is engineered for the Audi 8Y RS3 (2021+) as a direct OPF/GPF-back system. This is our loudest cat-back option, delivering maximum volume enhancement with race-spec performance.

Constructed from T304L stainless steel and mandrel-bent for optimal flow, this system features a race-spec rear silencer for reduced weight and aggressive exhaust character. Direct factory fitment uses OEM hangers-no modification required. The 80mm (3.15") large bore diameter maximizes scavenging and supports peak power delivery across the RPM range.

Fitment & Compatibility

• Audi RS3 8Y Saloon/Sedan (2021+)
• OPF/GPF-back configuration
• Direct replacement, uses OEM mounting points
• Non-resonated design for closed-course/track use

Every system is dyno-tested and engineered for measurable flow improvement alongside authentic sound character.

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: 1 to 1.5 hours, including removing the factory system

Fitment

• Audi > RS3 > Saloon/Sedan (8Y MQB EVO) > 2022 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.