to be totaly honest if my stock header didnt have a warpped flange i wouldnt have changed it. the m42 header is about as good as it gets unless you go long tube but then you lose the flange for your cats,since this car is tagged in wva i dont gotta go thru emmsisions so i went for a longtube stainless header and dropped the cats. long tube stainless or black powdercoated header is $250.00 my price.