Well there are a couple websites that have quite a few different brands of headers. Some of the headers I was looking at are Gibson stainless steel headers. The guy that did my exhaust told me that they are great headers! But theyre around $500 or $600. A few websites that might have what you are looking for is www.jcwhitney.com, www.stylinconcepts.com, www.jegs.com, and you could probably even try ebay (you never know what kinda deals you can find there) Anyways I hope this helped out!
~Mcfly~