well its not done.. all i had done was the catback the rest is stock. i have headers and whatnot in order but this was free so i said what the hell. after weeks of research on exhaust i just said to hell with it and put straight pipe on. honestly i like the way it sounds so im keepin it like that. i have a tune in order in about a month and bein that it needs a tune up as well as the tune i figured id get it all. i found a vid of a gp with the same setup as mine and it sounds exactly like his so here it is.
YouTube - 1997 Pontiac Grand Prix GT Exhaust
as far as driving in the high rpm it sounds similar to a 350z with a catback and thats because one is in my town and it sounds pretty similar....SIMILAR not exact.