Corsa Dual 2.5" Cat-back Exhaust - Audi B7 S4 4.2L V8 (NLA)

Adding a cat-back exhaust to your S4 4.2L is an excellent way to increase power and overall sound. Patented RSC Technology allows CORSA to acoustically style the sound of your vehicle to give you the true voice of performance without the annoying drone while cruising. Straight through nonrestrictive system design maximizes airflow improving performance and fuel economy. All components; even clamps and hangers; of the system are constructed of premium grade stainless steel to ensure that the look and sound of your CORSA system won't change over the life of your vehicle. Proudly designed and manufactured in Berea, OH USA. Quickly enjoy the CORSA sound with an easy bolt on installation. No welding needed, all hardware and detailed instructions are included. Limited LIFETIME warranty for as long as you own your vehicle.

Available Tips: Quad Round, staggered and angle cut, 3" Polished Stainless Steel or Black with Corsa Engraving

Product Details:

-Mandrel-bent dual 2.5" pipes 100% 304 stainless steel seamless weld silencers
-Highest quality aircraft-grade stainless steel
-Sharper throttle response
-Substantial weight savings
-Precision quality
-Reduced back pressure for max performance - no loss of low end torque!