Audi B9 S4 / S5 Valved Exhaust System

The NRP Valved Exhaust System for the Audi B9 S4 and S5 replaces the factory exhaust from the downpipe back with one complete T304 stainless system — no mixing a resonator delete from one brand with an axle-back from another. The 3.0T EA839 V6 has a real voice; the stock exhaust just hides it. With the valves open you get a bold, aggressive note with hard crackles on overrun; closed, the car goes back to factory manners with zero drone on the OEM downpipe. Remote key-fob valve control, 16.4 lb lighter than stock, direct bolt-on and 100% reversible.

Features:

• Complete T304 stainless catback — replaces everything from the downpipe to the tips
• Electronic exhaust valves with key-fob remote — quiet with the valves closed, full volume open
• Full mandrel bends, precision TIG welds
• 16.4 lb lighter than the factory exhaust
• Works with the OEM downpipe or any aftermarket downpipe built for the stock system
• No drone with the valves closed on the OEM downpipe
• Stainless exhaust tips included
• Direct bolt-on using the factory mounting points; 100% reversible
• NRP Lifetime Warranty

Fitment:

• 2017–2024 Audi S4 (B9) sedan — direct fit
• 2018–2024 Audi S5 (B9) Sportback — direct fit
• 2018–2024 Audi S5 (B9) Coupe — midsection must be shortened to fit; contact us before ordering

In the box: full valved exhaust system, electronic valves with remote, all clamps and hardware.
Professional installation recommended.