Hi,I have a 96 f150 5.8 with a highflow 2nd cat and no muffler with a Y pipe in its place and id like to top it off with some headers..I looked at several of them and hooker makes a direct fit pr for $300..Are they any good? Is their another quality brand for cheaper? Iv heard you get what you pay for and I dont want to replace gaskets every week so I want a decent set but not go broke doing so..Do they make much of a difference in HP on these newer EFI engines..thanks much..