The only thing I'm unhappy about with this is the EGR valve. The line leading to the intake manifold snapped at the header and has a nasty raspy sound upon acceleration. Probably going to JB weld it for the time being until I can find a tuner to do a EGR delete properly. Maybe when I get the MSpnp I could mess with it. But all in all a solid header setup. No issues, sounds great!