Not worth the money. Just get a really nice muffler and tip and have ur local muffler shop weld it on.
The sound will be fairly ricey. Ur goin from a very small exhaust pipe to a 4inch tip which will give it an amplified highpitched farty sound. For somethin really nice u should upgrade the whole catback to a larger diameter piping to get a really nice sound. But most axlebacks will give u a good sound without goin overboard. TRD, Borla, Strup, and afew others sound pretty good on the car. Do a search, there is a thread on here with abunch of different exhaust clips to give u an idea on what u may want.