Changed the exhaust on my car for a complte TTI

Sorry to hear they did not work out for you and they cut your performance down. If you get sick of them, check out these DR Gas Boomtube Xpipe system. I have been to their shop and watched them being built. Extensively tested, According to them, NO hp loss on the dyno compared to open header. I love mine.

http://www.drgas.com/boomtubes