ok im hoping for a quick respose or else i may run into alot of problems this afternoon. '92 grand prix se 3.4L DOHC, i want to cut the stock mufflers off and replace them with some cheap ones just to pass inspection but im not sure the exhaust size. i cant find stock mufflers for it anywhere local so there for i cant find anyone to provide me with the size i need. i picked up two 2 1/2" mufflers because that was my best guess and i could always use reducers if they are the wrong size but i hate to go out this afternoon and cut my mufflers off and be stuck here until my girlfriend gets home because they dont fit. also i was told that i had a leak at the exhaust manifold and they werent sure if it was the gasket or a crack. i wanted to just replace the rear manifold but i cant find that anywhere either. anyone know any place i could find these parts, im located in johnstown PA and iv tried all the parts stores and salvage yard i could find within a 2 hour radius.
