Stainless Valved Catback Exhaust System for Audi B9 S4 S5 Turbo Piping Our blow off valve adapter

Our blow off valve adapter flange allows a convenient way to mount a 50mm blow off valve to a SSQV adapter

Oiled cotton gauze DC Sports filter element balances airflow and filtration

Install By Experienced Professionals Is Highly Recommended

refined tone with reduced drone (daily-friendly)

precise tuning to match your driving style

Stainless Valved Catback Exhaust System for Audi B9 S4 S5 Turbo Piping Our blow off valve adapterThe Audi B9 S4 and S5, powered by the EA839 3. 0L V6, offer strong performance from the factorybut the stock exhaust limits the engines true sound and character. The STRATEC Valved Exhaust System unlocks a more aggressive, performance driven exhaust tone while retaining refined, OEM like manners when desired. Engineered as a complete, one piece exhaust system, this setup runs from the downpipe connection to the exhaust tips, eliminating the need to