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

Overview

Milltek Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (Non Sport Diff models). Direct factory fitment, 2.50" mandrel-bent T304L stainless steel construction with quad GT-100 titanium trim tips. OEM+ sound character engineered to enhance performance while maintaining street-legal resonance.

Hand-finished T304L stainless steel throughout. Mandrel-bent 2.50" (63.5mm) pipe diameter optimizes exhaust scavenging for improved flow. Resonated chamber tuned to the B9 platform's natural resonance point-eliminating drone while delivering a refined, purposeful tone at full throttle. Direct OEM hanger compatibility, no modification required.

Details

Fitment Notes

• Audi S4 3.0L Turbo V6 B9 Saloon/Sedan & Avant (Non Sport Diff) - 2016 and later
• Audi S5 3.0L Turbo V6 B9 Sportback (Non Sport Diff) - 2017 and later

Every system is decibel tested and EC type approved, ensuring performance gains backed by dyno validation and real-world durability.

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

Fitment