Well my good friend gets back from the basic school this weekend and wanted to go out on a cruise and get a few fun runs in. He's got an 08 Burnt Orange vette 6-speed with a cat-back, pretty sure he's on the stock tires.. I've got an 04 Cobra with K&N intake, SLP cat-back, and a 2.8" pulley, and 315 555r's. I've been in his car before and it is definitely pretty quick for just an exhaust, but I'm not sure how they compare. Any insight?