Ok, I found exactly what I want on ebay for $416.10. Its a pair of MAC long tube headers with a small H pipe. Is this a good price or do you know where I can get this same setup for cheaper? I also plan on getting a set of flowmaster 40's to go along with it. 
http://shop.ebay.com/i.html?_nkw=mu...ies&_odkw=mustang+long+tube+headers&_osacat=0
http://shop.ebay.com/i.html?_nkw=mu...ies&_odkw=mustang+long+tube+headers&_osacat=0