Milltek Race Cat-Back Exhaust - Audi B8 S4 V6 - Cerakote Black Tips - SSXAU240

The Milltek Race Cat-Back Exhaust System is a direct factory replacement for the Audi B8 S4 V6 and B8 S5, engineered to replace the OEM cat-back assembly without modification. Non-resonated design delivers an aggressive, full-throttle character with enhanced exhaust flow through a 2.37" (60.30mm) mandrel-bent T304L stainless steel pipe.

Constructed from hand-finished T304L stainless steel-the same material specification used in aerospace applications-this system resists thermal stress and corrosion. CNC-formed dual Cerakote black oval tips finish the rear end with factory precision. Uses OEM hangers and mounting points; no welding or bracket modifications required.

Fitment

• Audi B8 S4 Sedan (3.0L Supercharged V6)
• Audi B8 S5 Coupe/Cabriolet (3.0L Supercharged V6)
• Cat-back only-retains OEM downpipe and secondary catalytic converters

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

Specifications

• Pipe diameter: 60.3mm (2.37")
• Fitting time: 2 to 3 hours, including removing the factory system

Fitment

• Audi > S4 > 3.0 Supercharged V6 B8 > 2009 to 2012

• 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.