Stainless 304 Valved Catback Exhaust System for Audi RS4 RS5 B9 B9.5 2.9T

Enhance sound, performance, and durability on your Audi RS4 or RS5 2.9T with the STRATEC 304 Stainless Steel Valved Cat-Back Exhaust System. Engineered for drivers who want aggressive sound on demand with everyday refinement, this system delivers a powerful motorsport-inspired exhaust note when valves are open and a quieter, OEM-like tone when closed.

Constructed from high-quality 304 stainless steel, this exhaust offers excellent heat resistance, corrosion protection, and long-term reliability while remaining lighter than the factory exhaust. The valved muffler design provides instant sound control, making it ideal for both daily driving and spirited performance use.

Key Features

• Fits Audi RS4 & RS5 B9 / B9.5 2.9T

• 304 stainless steel construction for durability and longevity

• Valved cat-back exhaust system with adjustable sound modes

• Aggressive, performance-focused tone with valves open

• Quiet, refined operation with valves closed

• Improves exhaust flow and throttle response

• Precision TIG-welded for strength and clean finish

• Direct bolt-on installation using factory mounting points

Sound Modes

• Valves Open: Loud, deep, and motorsport-inspired exhaust note

• Valves Closed: Refined, OEM-like sound for daily driving