Sorry, I don't have a before and after sound clip, but this should give you a perfect idea of how the car will sound after the swap.
Before (Stock exhaust).
(Start up/ idle) Bummmurrrrr....
(short revs) Vummmmurrrrrrmmmm.... vummmurrrmmmm....
(Going down the road) Muuuurrrrrrrrrrrrr.... (shifting) Murrrrrrrrrrrrrr... (second gear) Murrrrrrrrrrrrrrrrr...
After (Saleen Magnaflow catback, Kooks long tube headers, off road X-pipe)
(Start up/ idle) BAROOOMM... wabba, wabba, wabba, wabba, wabba...
(short revs) Booooroooomm... Waahhh WAAhhhh WAAAHHHHHHHMMM!!!...)
(Going down the road) MURAAAAAAHHHH.... (shifting into second and hammering it) chirp, BUUUUWAHHHHHHHHHHHHHHH!!!!! (going into third) chirp, BUUUUUAAAHHHWAAAHHHHHH!!!!!!!!!!!!!!!
Hope that helped. You're welcome!