MilltekNon-Resonated Cat-Back ExhaustFitment: Audi B9 S4 S5 - Brushed Titanium Tips

Overview

The Milltek Non-Resonated Cat-Back Exhaust System is engineered for Audi B9 S4 and S5 (non-Sport Differential models). This 2.50" mandrel-bent T304L stainless steel system replaces the factory cat-back and delivers direct fitment using OEM hangers with no modification required.

Hand-finished T304L stainless construction with Quad GT-100 titanium trim tips. The non-resonated design eliminates the OE resonance chamber, sharpening throttle response and unleashing a more aggressive full-throttle character. 2.50" (63.50mm) bore maintains scavenging efficiency across the rev range. Direct factory fitment ensures seamless integration with OEM mounting points and suspension geometry.

Details

Fitment Notes

• Audi S4 3.0 TFSI V6 B9 Saloon/Sedan & Avant (non-Sport Diff models) - 2016 and later
• Audi S5 3.0 TFSI V6 Sportback B9 (non-Sport Diff models only) - 2017 and later

Each system is hand-finished and tested to ensure the engineered tone character you expect from a Signature Series cat-back.

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

Fitment