1. I disconnected the wire to my cat from the car itself, not the cat, and the little clips that held it against the metal sort of messed up, do i need them?

2. Berk ceramic coated headers, Berk 70mm HFC, skunk2 megapower duals... this will all fit without this wierd thing im reading about pipes touching side walls and crap?

Had alot of issues with stock cat, header etc... so had to replace em all... got headers in and exhaust on... just no cat yet... waiting for my berk to get here tomorrow