Milltek Non-Resonated Cat-Back Exhaust - Audi B8.5 S5 - Polished Tips - SSXAU409

Milltek Non-Resonated Cat-Back Exhaust System for the Audi B8.5 S5 Coupe and Cabriolet (3.0 TFSI). Direct factory fitment using OEM hangers; no modification required. Replaces the complete cat-back section from the secondary catalytic converter rearward.

Constructed from T304L stainless steel with 2.37" (60.30mm) mandrel-bent piping. Hand-finished polished quad outlet trims. The non-resonated design eliminates the OEM resonance chamber, delivering an engineered tone that emphasizes full-throttle character without drone at cruise. Uses the factory valve location for OEM valve compatibility where equipped.

• 2.37" mandrel-bent T304L stainless steel construction
• Direct cat-back fitment (secondary cats to tailpipe)
• Hand-finished polished quad outlet trims
• OEM+ installation using factory hangers
• Non-resonated for road and track use
• Dyno-proven flow improvement over OEM

Engineered to Exhilarate.

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

Specifications

• Pipe diameter: 60.3mm (2.37")

Fitment

• Audi > S5 > 3.0 TFSI B8.5 Coupe & Cabriolet > 2011 to 2016

• 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.