ok, i have been gettin a problem, when im stopped at a light, i hear a quiet knocking, it sounds kinda funny, like it my interior or something. anyways, i also get it at start up and when i shut it off. i know its not my valves, i borrows one of those stethascope dealies for engines, and there wasnt a problem. i believe its my exhaust studs, being a vg, ive herd theyre a common problem.

any other ideas, and how much should i expect to have it fixed elsewhere, or to fix it myself

 

you should expect to pay anywhere from $300 - $500 to get them fixed. at least that is what i have been quoted for mine.