i've read a LOT about dual exhaust on this car, but there's very little info about the actual sizes you folks are using. here's my dilemma.... i bought 2.5" flowmasters, and i've already painted them a nice black, then i got the tips in that were supposed to fit a 2.5" pipe, and they don't fit. i've got 2 separate sets - both advertised as fitting 2.5", and neither do. a minute ago on a whim i did what i shoulda done to begin with, measure the stock pipe, which looks to be 2.25"... am i right? now, the guy that's putting on the mufflers is replacing everything from the cats back with new stuff, so what's stock isn't really an issue, except i'm reading that the 2.5" pipes may hinder low-end torque. if this is the case, is it possible to go with the 2.25" pipes and keep my 2.5" mufflers? and if so, what the HELL is the deal with these bolt on tips not fitting the size they say they're supposed to fit. i've got both Gibson tips (2.5"inlet / 3"outlet) and some cheap ones (2.5"in/out), and both sets just butt flat up against the muffler pipes w/out slipping over to bolt down. i'd really appreaciate a little feedback here.