Adding a cat-back exhaust to your S5 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.

Features:

- Market Leading Acoustic, No-Drone, RSC Technology
- Race Inspired, Straight-Through Design Maximizes Performance
- Custom Tuned, Aggressive Exhaust Note
- Dual Walled, Black PVD Polished Stainless Steel Tips
- 304 Stainless Steel Construction
- Limited Lifetime Warranty
- Easy Bolt-On Installation. Direct Fit to Stock
- Detailed Printed Instructions Included, Full-Color Available Online
- No Welding Required
- Made in the U.S.A.

Note:
Installation Instructions