LiftedChevy1
Full Member
I've got an 05 Avy with a 5.3L and all that has been done to it performance wise has been a cat back Flowmaster exhaust that is pretty mild. I want some more horses but I'm not sure of what to do next except maybe a good tuning. Does anyone know of a good shop or someone that would put a tune on it that is in the Northwest Suburbs of Chicago or near Rockford? I'm in Huntley which is about halfway between Schaumburg and Rockford basically.