Milltek Resonated Cat-Back Exhaust - Audi S4 V8 quattro B6 - Cerakote Black GT Tips - SSXAU875

Milltek Resonated Cat-Back Exhaust System for Audi B6 A4 3.0L V6 Quattro and B6 S4 4.2L V8 Quattro (2003-2005). Direct factory fitment cat-back system using OEM hangers, no modification required.

Constructed from T304L stainless steel, mandrel-bent 2.25" (57.15mm) diameter tubing with hand-finished GT-100 Cerakote Black trim tips. Resonated design engineered for OE+ sound character-eliminating excessive drone while preserving full-throttle exhaust note definition. Dyno-proven flow improvements across the rev range.

• Audi A4 3.0 V6 Quattro B6 Saloon, Avant, Cabriolet (2003-2005)
• Audi S4 4.2 V8 Quattro B6 Saloon, Avant, Cabriolet (2003-2005)

Precision-engineered resonance tuning delivers the Milltek sound signature-refined aggression without compromise. EC Approved for global compliance.

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

Specifications

• Pipe diameter: 57.15mm (2.25")
• Fitting time: 2 to 3 hours, including removing the factory system

Fitment

• Audi > S4 > 4.2 V8 quattro B6 Saloon/Sedan, Avant, & Cabriolet > 2003 to 2005

• 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.