Hey guys. I have an old catback system i had on my 2k GMC 1/2ton Xcab.Do you guys know if anything has been changed on the same truck that is a 03?I am hoping i can bolt this onto my dads new truck and that GM didnt change the location of the exhaust from 00-03.Thanks they are both 5.3s well mine was.

 

i think the only difference is just the frontend.. so bolt it right up

 

Thanks for the reply,I glanced at a couple of aftermarket systems and they didnt say 99-04 catbacks,Best thing to do is just try it.