Cat-Back Exhaust

Milltek Resonated Cat-Back Exhaust | Audi B9 S4 S5 - Cerakote Black Tips

Brand: Milltek

Part #: SSXAU649

$4,236.13+4236 pts

In Stock

SKU: MK-SSXAU649

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Description

Milltek 2.50" Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-sport differential models). Direct factory fitment replacement using OEM hangers; no modification required. Hand-finished T304L stainless steel construction with mandrel-bent 2.50" (63.50mm) bore pipe. Resonated design eliminates drone while preserving OE+ tone character. Quad Cerakote Black oval trims. Dyno-proven power gains with engineering-grade flow optimization. Fitment • Audi S4 B9 3.0L Turbo V6 (Non Sport Diff) - 2016+ • Audi S5 B9 Sportback 3.0L Turbo V6 (Non Sport Diff) - 2017+ Cat-back system; retains factory cat and secondary catalytic converters. Engineered to Exhilarate. Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Check Vehicle Fitment

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