Milltek Non-Resonated Cat-Back Exhaust | Audi B6 S4 - Cerakote Black Tips

Description

The Milltek Non-Resonated Cat-Back Exhaust System is engineered for the Audi B6 S4 4.2 V8 Quattro (Saloon, Sedan, Avant, Cabriolet). This is a direct factory fitment cat-back system-replaces the OEM exhaust from the rear of the secondary catalytic converters back, requiring no vehicle modification. Hand-finished T304L stainless steel construction with 2.25" (57.15mm) mandrel-bent piping and Jet-100 Cerakote Black trim finishes. The non-resonated design eliminates the OE resonance chamber, delivering a more pronounced full-throttle character while maintaining direct OEM hanger compatibility and ease of installation. Fitment & Compatibility • Audi B6 S4 Saloon (2003-2005) • Audi B6 S4 Sedan (2003-2005) • Audi B6 S4 Avant (2003-2005) • Audi B6 S4 Cabriolet (2003-2005) • 4.2L FSI V8 engine (engine code ASP) • Replaces OEM cat-back system only-secondary cats remain stock Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Fits 2 vehicles including:

• 2004 Audi S4— 4.2 V8 quattro B6 Saloon/Sedan, Avant, & Cabriolet > 2003 to 2005
• 2005 Audi S4— 4.2 V8 quattro B6 Saloon/Sedan, Avant, & Cabriolet > 2003 to 2005