Which brand of long tube headers do you suggest for my car? I am currently looking at the BBK ones but I also like the hooker ones too. I know that the BBK setup comes with a high-flow h-pipe included together with the headers. What kind of h-pipe would work with the hooker headers in order to position it in the same spot as the factory one so that i can install a cat-back without fabrication. Also would the real O2 sensors or anything have to be turned off in this application if i go with a catted h-pipe?