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OEM or Independent Valve Control: Integrated with factory electronics for seamless operation via drive modes
Valves Closed: OEM-level refinement for long drives
quieter tone — ideal for city driving or long journeys
100% reversible—can return to stock at any time
Audi B8 / B8.5 S4 / S5 Valved Sport Exhaust System TIPS:(4) Black (3.5" Outlet) OEM or Independent Valve Control:Audi B8 B8. 5 S4 & S5 Valved Exhaust System T304 Stainless Steel, High Pitch X Pipe, Vacuum Valve Control Overview Transform your supercharged V6 into a true auditory experience. Our Valvetronic Designs Valved Exhaust System for the Audi B8 and B8. 5 S4 S5 delivers a unique, high pitch wail while retaining low end rawness for a sound profile unlike anything the platform has heard before. Constructed entirely from T304 stainless steel and featuring our
