i got the whole catback system 3 inch pipe it sounds amazing man im serious i had no idea it woulda sounded so good make sure you get the 80 series american thunder 3 inch catback and get that borla y pipe that made alot of difference it made it even louder my town is an ls1 town but they always tell me how good my lt1 sounds everytime i talk to em so even mustang flames like it

 

how much did you have to pay for it? not including labor

 

well figure in the muffler and the pipe and the tips i got which is a must have DO NOT KEEP YER STOCK TIPES get the biggest longest ones you can get probly around 300 or more

 

wow im going to have to save up haha....18 prat time job and 210 dollar payments a month..id better start saving hopefully have it by college in fall

 

if yer lookin for hp and not goin internal i would get mass air bigger throttle body 160 degree themostat new coil a programmer wich is a must have probly the first thing you should get because u have to program little things in to work its worth the money cold air is a good help but truthfully i wish i had the money and know how to buy the lt4 kit and a shot a juice then itll be fast