The origional "ProParts" headers are no longer being produced and have not been for several years. Anyone that bought them recently simply purchased old inventory which is fine. Bob Mazzolini recently had them remade and improved and also offers a 2 - 2 1/8 step header in the same design. I believe that TTI is producing the headers specifically for Bob. They are not cheap either. They are right up there in price as the standard TTI stuff and Hooker Super Comp prices. Still cheaper than custom. I believe they are like $850 or so. Im not sure, so you would have to contact Bob Direct. I recently asked Bob how they were selling and he said surprisingly well despite the recession. He thinks the economy is starting to turn around because people are buying his headers again.LOL. ANyways Bobs number is 951-787-8783.