Have you ever heard of Meggs? They have some awesome tips.You might check a Street Rodder type magazine to find a link.Your decision to go this route could save some you big bucks,the factory mufflers should be good for at least 4 to 5 years.
I lucked out and found some axle back take-off's from FRPP for 1/2 off the price,I'm pretty sure they made by Borla.
98'GT Rio Red
Loaded opts. from the factory