Borla's C7 exhausts DO utilize the NPP systems and use all 4 valves. The valves are very complex part of the C7 and we wanted to make sure we took our time to properly R&D a part our customers can appreciate and benefit from.

Since the NPP models offer a Touring mode, we've developed two cat-back systems using customer input and our top of the line R&D facility. Our S-Type system offers a great tone and strong rumble to help flex that LS powered American Muscle. Our ATAK (acoustically tuned applied kinetics) system provides that race proven roar - distinct and aggressive - NO DRONE, and still come with our million mile warranty!

The S-Type system:
http://www.borla.com/products/c7_cor...rt__11855.html

The ATAK system:
http://www.borla.com/products/c7_cor...rt__11856.html


I've also included a youtube clip showcasing our C7 - will have a more in depth video
later on as we continue to release the rest of our parts like our long tube headers, x
pipes, and diffuser.