Valved Catback Exhaust for Audi S4 (B9.5) (2020–2024)

This valved catback exhaust system lets you switch instantly between OEM-level quietness and a stronger, more aggressive performance tone. Constructed from premium 304 stainless steel with precision TIG welding, it provides long-term durability, corrosion resistance, and a clean OEM-style finish. Fully bolt-on with no cutting or welding required, installation is straightforward for most professional exhaust shops. Tuned specifically for the updated 3.0T V6 in the facelift B9.5 S4, it delivers a deeper and more dynamic exhaust note compared to the factory setup, especially when the valve is open.

Fitment: Compatible with Audi S4 (B9.5 Platform, 2020–2024), sedan and Avant. Fitment can be confirmed using VIN or a rear exhaust photo if needed.

What’s Included:

Mid-pipe + rear valved catback system

Mounting hardware and clamps

Wireless valve controller or OEM-style valve integration (depending on configuration)

Sound Characteristics:

Cold Start: deeper and more pronounced tone

Valve Open: loud, refined, and performance-oriented exhaust note

Valve Closed: close to OEM comfort, suitable for commuting and quiet environments

Shipping: Ships directly from our partner factory. Estimated delivery: 2–5 weeks.

Warranty: If the product arrives damaged or defective, replacement parts will be provided.