Stick with the phrase, "You Pay For What You Get." Flowtech is manufactured by Holley/Hooker and is an economicaly priced header. There flange's aren't very thick, so you can expect warping and exhaust leak's within time and the fit isn't the greatest either. You can get a set of BBK's, Hedman's, Mac's, etc. etc. for not a whole lot more. It's best not to cheap out on header's as it will bite you in the long run and you'll regret it.