Milltek Non-Resonated Cat-Back Exhaust - Audi D4 S8 - Polished Tips - SSXAU468

Milltek Non-Resonated Cat-Back Exhaust System for Audi D4 S8 Quattro. Direct factory fitment replacement using OEM hangers, no modification required. 2.76" (70mm) mandrel-bent T304L stainless steel construction with engineered tone tuned to eliminate OE resonance points for full-throttle character on closed-course and track applications.

Hand-finished T304L stainless steel construction with CNC-formed polished or gloss black tip options. The non-resonated design delivers a pronounced, unfiltered exhaust note while maintaining structural durability and corrosion resistance. Dyno-tested for measurable flow improvement over factory systems.

Fitment

• Audi S8 D4 Quattro (2013-2018)
• Cat-back configuration: catalytic converter to tailpipe
• Uses OEM mounting points and hangers
• No welding or cutting required

Milltek systems are decibel-tested, EC approved, and engineered for both sound character and measurable performance gains.

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

Specifications

• Pipe diameter: 70mm (2.76")

Fitment

• Audi > S8 > D4 4.0 TFSI quattro Tiptronic > 2013 to 2018

• 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.