Do not buy the Hedman headers, they are of the 3 tube design and not the best for scavenging of the exhaust gases. The Hooker Super Comps. are a little more (from Jegs) but are worth it. I just pulled the Headman's off and put on the Hookers(4 tube) and just the sound sold me. I also used the copper gaskets and they are working great,no leaks. I think I gained some low end and top end seems smoother. Just my two cents worth.