I just got done installing my ractive header after 3 hrs(damn spring loaded bolts). Had to get a torch to heat them before i could get them off. It does rattle against my oil pan only in reverse. But i will fix that problem by just grinding down the flange(where the spring loaded bolts are) that is on the ractive header about a 1/8 inch and that should be enough to solve that problem. I would also recommend getting a new gasket for that same flange, mine was in great shape but the material is brittle when u try using a flathead to get it off. Mine is leaking now not bad but u can hear it at about 4000rpm just when the power jumps up. Also for those that don't know i had mine nickel plated to ensure it doesn't rust or get moisture in the welds.
