Milltek Resonated Cat-Back Exhaust - Audi B9 S4 S5 - Polished Tips - SSXAU640

Milltek Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-Sport Differential models). Direct factory fitment, 2.50" (63.50mm) mandrel-bent T304L stainless steel construction with quad GT-100 polished tips. Engineered to deliver enhanced exhaust flow and an OE+ tone signature.

Hand-finished T304L stainless steel throughout, using OEM hangers and factory mounting points for drop-in installation. The resonated chamber design fine-tunes the resonance point for a sportier note without excessive interior drone. Dyno-proven gains in exhaust scavenging efficiency across the 3.0L turbo V6 powerband.

Fitment

• Audi S4 B9 3.0 Turbo V6 Saloon/Sedan & Avant (non-Sport Differential) 2016+
• Audi S5 B9 3.0 Turbo V6 Sportback (non-Sport Differential) 2017+

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

Specifications

• Pipe diameter: 63.5mm (2.50")
• Fitting time: 1 to 1.5 hours, including removing the factory system
• E-marked for road use

Fitment

• Audi > S4 > 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
• Audi > S5 > 3.0 V6 Turbo Sportback B9 (ONLY - Non Sport Diff Models Only) - Left Hand Drive Cars Only > 2017 and Later

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.