VCTR Performance Audi S4/S5 B8/B8.5 Valved Catback Exhaust System

Overview

The factory exhaust on the B8 and B8.5 S4/S5 is quiet by design. This valved catback system replaces it with a more expressive setup, giving a deeper, more defined tone that can be adjusted via the valve control.

Why Upgrade?

• Deeper, more characterful exhaust note than the factory system
• Valve control allows sound level adjustment for different situations
• Reduced back pressure through the rear exhaust section
• Stainless steel construction for longevity
• Direct OEM replacement installation

Built for the Drive, Not Just the Dyno

The B8's factory exhaust is tuned to disappear into the background — sensible for a daily Audi, but it leaves the 4.2L V8 mostly unheard. Valve control means you keep both: quiet for the commute, the V8's real character the moment you want it.

Fitment

Compatible with:

• Audi S4 B8
• Audi S4 B8.5
• Audi S5 B8
• Audi S5 B8.5

What's Included

• Complete catback exhaust assembly
• Valve control components
• Supplied installation hardware

Shipping & Fit

• Confirmed fitment by chassis and engine code before you buy, not after
• Worldwide shipping, cost calculated at checkout for your destination
• Australian Consumer Law returns on all unused, unfitted parts
• Questions about your specific build? Message us — real people, real platform knowledge

Delivery & Support

Your order is carefully inspected before dispatch and backed by VCTR Performance support. For product availability, shipping estimates or fitment assistance, contact our team.