Milltek 80mm Non-Resonated OPF-Back Exhaust - Audi S8 D5 - Carbon Fibre Tips - SSXAU952

Milltek 80mm Cat Back Non-Resonated OPF-Back Exhaust System for Audi D5 S8 4.0 TFSI V8 (2020+). Direct factory fitment replacement engineered to amplify full-throttle character while maintaining OEM+ installation compatibility.

T304L stainless steel construction with 80mm mandrel-bent piping and hand-finished JET-115 carbon trim options. Non-resonated design eliminates mid-range resonance for a pronounced, unfiltered exhaust note across the rev range. Decibel-tested for full-load acoustic signature.

Fitment

• Audi S8 D5 4.0 TFSI V8 Saloon (2020 and later)
• Standard and Long Wheelbase variants
• OPF-back configuration (secondary cat and particulate filter delete)
• Uses OEM hangers and mounting points - no modification required

Engineered for track and closed-course use; verify local emissions compliance before street deployment.

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: 2.5 to 3.5 hours, including removing the factory system

Fitment

• Audi > S8 > D5 4.0 TFSI V8 Saloon/Sedan - Standard Wheel Base (GPF US/ROW Models) > 2020 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.