Message: Lot of talk about JBA headers,has anyone been using them for a while? what is the low down.
Better fuel miliage, noticably more hp. I have a 92 Dak w /3.9. What can be expected if I put them on with a free flowing cat, Dynomax catback exhaust. I haven't bought the headers yet and don't want to waste the money if no real performance is noticed.