Prochambers sound nasty, as well as the catback, even though my buddy who has a 98 ordered a prochamber and it did't have hangers? I saw it, I was there when he got it. Anyways, I'm just tellin you from my experiences and what I've heard.(Really. go check MAC's header and throttle body reviews) Thier xhaust coating isn't worth dik either, but it's cheap perfomance parts so if you don't mind running into problems and frustration, then go for it.