Ok i got the pipe on yesterday. i was right i did need more hardware. the front manifold has studs that stay with the old y-pipe. and the rear gasket- i would be suprised if someone reused that and it didnt leak BAD! the rear flang was twisted about 3/4 of an inch. so i had to oblong the holes to make it line up.
anyway now its on and no leaks. except it sounds like a pissed off weed eater. cat-back def needed now. et gains?