Well first of all i'm new to exhaust setups and pretty much everything else with exhausts. Well i have a 98 f150 v8 4.6L, and i think i might have a small exhaust leak in one of my headers, or the connection to where the headers meet the piping. hopefully you can figure out what i mean. How big of a job is it to get new headers? is it expensive? or how can i tell if it has a leak or not?