Ok Bryan. You have got a little of your anger out in the open. Now, how about an accurate description of what these guys did? For all we know you could have had one or two broken studs in the head. Did they sell you any parts? Was the header new and in decent shape? Did you get new double hung hangers, gold plated wing nuts, platinum phlenum intake adjustement sleeves? What man? Bear in mind that you need to give the WHOLE story if you want us to form an honest opinion. $450.00 is a lot of money for installing headers, granted, but what else, if anything, did they do?