No worries! If you look back a page it kind of explains it. I did not want the dump at the firewall and routed it back to the rear diff. It still barked quite loud so I added the Supertrapp muffler and now I am very happy with it!
It's all about these Killer B Holy Headers and they rock!! They help to spool any turbo fast, make big torque and they flow huge air for high HP!!!