Well these are made by flowtech, but they look exaclty the same. Summit wants $40 bucks a set. And I wouldn't think of spending that much on header gaskets but I know a guy who has 50 sets he'll sell me for under $100. I don't need that many sets but I can keep a few and sell the rest. I'm sure I can get $10 a set for them. they are all brand new still boxed up.