I have a manifold leak on my drivers side and when thinking about replacing I get the thoughts of putting headers on. My truck has over 300k on engine but was partially rebuilt a year ago to remove AFM, it doesn't have a performance cam or anything but does have MBRP exhaust and K&N cold air intake. My research of the pacesetters have gotten me some mixed reviews on amazon and wondered if anyone can tell me if they are okay headers for the price or confirm that they are cheap like some reviewers on amazon. I cant fully trust amazon reviews and knew you guys would give honest answers. Are they okay for a 300k motor or should I just stick with factory manifolds if im not willing to buy Doug Thorleys? Thanks!