the headers are made extremely cheap. They have extremely thin walls and you can about bend them by hand when they are warmed up. I would recommened staying away from them and just spend a little more on the Mac's atleast. A buddy of mine tried the Hedmans out and ended up taking them off within a month because they were so cheap and leaked pretty bad. If your going to spend $229 or so, then why not just spend the extra $80 or so it costs to get the Mac's? Ive had my Mac headers for almost a year now and have no rust at all(although im in south carolina) Also from what ive seen the Mac's produce the most power of any of the longtubes avaiable.