Probably $529.00 plus shipping, that's their standard price unless you buy them on Ebay from someone who decided not to use them.

vettetruck89, can you give us some pics and let us know how high you raised your motor with the adapters? Lambert and Mark at S&P said there would be problems so they would just tack a set up for me and I could send them back and they'd fix where they were hitting and then weld them up. I'm really interested because you're right, these are some sweet headers eventhough they won't give you the HP of longtubes. BTW, Taylor wires oughta fix you up if the stock are hitting. Thanks