Milltek Resonated Cat-Back Exhaust | Audi B9 S5 Coupe - Carbon Fibre Tips

Description

The Milltek Resonated Cat-Back Exhaust System is engineered for the Audi B9 S5 3.0 TFSI V6 Turbo Coupe and Cabriolet (Non-Sport Differential models only). This system replaces the factory cat-back section, delivering improved exhaust flow and a refined, sportier tone while maintaining OEM+ fitment and compatibility. Constructed from T304L stainless steel with mandrel-bent 2.50" (63.5mm) diameter tubing, this resonated design eliminates drone while enhancing the natural engine character across the rev range. Finished with quad JET-100 carbon fiber trim outlets. Direct factory fitment uses OEM hangers and mounting points-no modifications required. Hand-finished construction and EC Approval for street use. Fitment & Specifications • Vehicle: Audi B9 S5 Coupe / Cabriolet (2017-2020) • Engine: 3.0 TFSI V6 Turbo (CZEA / CZEB) • Pipe Diameter: 2.50" mandrel-bent T304L stainless • Configuration: Resonated (OE+ tone, drone-free) • Outlet Style: Quad JET-100 carbon trim • Fitment: Direct cat-back replacement, OEM+ hangers, no modification • Compatibility: Non-Sport Differential models only Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Fits 7 vehicles including:

• 2017 Audi S5— 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) > 2017 to 2023
• 2018 Audi S5— 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) > 2017 to 2023
• 2019 Audi S5— 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) > 2017 to 2023
• 2020 Audi S5— 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) > 2017 to 2023
• 2021 Audi S5— 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) > 2017 to 2023
• 2022 Audi S5— 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) > 2017 to 2023
• + 1 more vehicles