yeah, its hooked up fine, i think its definately the cat, cause before the install i looked though it and it looked like 2 mesh screens and tahs about it, i could clearly see through it. I dunno, I'm gonna be strapping a s/c on this thing soon, so I don't feel like taking a stap backwards with a less flow cat. Someone suggested a OBD1 conversion harness, and you seem to be an ECM guy....opinion?