Just want to share my experience with my exhaust choice. Well anyway found my self in a situation that I had to replace my factory exhaust system because of a cat failure. I went with a single 3" Dynomax Super Turbo and it performs better and not to aggressive, but you can tell it a V8!! For a factory single exhaust look for AP pipes they are heaver and have a better rustproof metal process. The thing I like about the Dynomax Super Turbo is that it uses flow directors instead of chambers. Believe it or not it helped my fuel milage, around 19.4 MPG. The bad side is the MPG has dropped if I lean heavy on the accelerator, LOL!