Milltek Non-Resonated Quad Outlet Race Catback For B8 Audi S5 3.0T (S Tronic)

The Milltek Race Non-Resonated Cat-Back Exhaust System is engineered for the Audi B8 S5 3.0 TFSI Coupe and Cabriolet. This direct factory-fit system replaces the OEM exhaust with a 2.37" (60.30mm) mandrel-bent T304L stainless steel design, delivering enhanced flow, dyno-proven performance gains, and a fully open, aggressive sound character.

Hand-finished T304L stainless steel construction with quad polished outlet trims. Uses OEM hangers and mounting points-no modification required. The non-resonated design eliminates the factory resonance chamber for maximum acoustic expression at full throttle, making this the loudest cat-back option available for the B8 S5. Engineered for closed-course and track use; street legality may vary by jurisdiction.

Fitment

• Audi S5 B8 Coupe (3.0 TFSI, 2009-2011)
• Audi S5 B8 Cabriolet (3.0 TFSI, 2009-2011)

Technical Specifications

• Pipe Diameter: 2.37" / 60.30mm, mandrel-bent
• Material: T304L stainless steel, hand-finished
• Resonated: No (race-spec, non-resonated)
• Outlet Style: Quad polished trims
• Fitment Type: Cat-back, direct OEM replacement