Cat-Back Exhaust

Milltek Non-Resonated Cat-Back Exhaust | Audi B9 S4 S5 - Brushed Titanium Tips

Brand: Milltek

Part #: SSXAU657

$4,158.02+4158 pts

In Stock

SKU: MK-SSXAU657

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Description

The Milltek Non-Resonated Cat-Back Exhaust System is engineered for the Audi B9 S4 and S5 (non-sport differential models). This 2.50" mandrel-bent system replaces the factory exhaust, delivering enhanced flow, measurable power gains, and a signature aggressive tone without resonance chambers. Constructed from T304L stainless steel and hand-finished with quad GT-90 titanium trims. Direct factory fitment using OEM hangers-no modification required. The non-resonated design eliminates mid-range drone while preserving full-throttle character and presence. Fitment • Audi S4 3.0 TFSI V6 B9 Saloon/Sedan (non-sport diff) 2016+ • Audi S4 B9 Avant (non-sport diff) 2016+ • Audi S5 3.0 TFSI V6 B9 Sportback (non-sport diff) 2017+ Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

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Fits 22 vehicles including:

2016 Audi S4— 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
2018 Audi S4— 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
2019 Audi S4— 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
2020 Audi S4— 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
2021 Audi S4— 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
2022 Audi S4— 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
+ 16 more vehicles