Kooks 1-7/8" x 3" and 3" off road X-pipe all Stainless Steel. With a JBA 3" full catback with JBA mufflers. I plan to one day swap out the 3" mufflers with Borla Stinger 3" Mufflers.
http://www.svtperformance.com/forums/showthread.php?813451-And-she-said-3-quot-was-small&highlight=
Oh shoot do you have that running yet? We have almost identical setup. I have those exact long tubes and x pipe from kooks. Now just looking for the cat back. I'll have to look at the JBA. Not a fan of those mufflers though. Was hoping for a straight through bullet style much like my borla stingers. The more free flowing and loud the better lol