I have a set of FabSpeed Sport Headers and Sport Cats for sale (As-Is) for $1400, only been on the car from end of 2007 to mid 2009; I believe for about 8000 miles.
They're for my 2004 Boxster, great condition; the set still sells for $2300 elsewhere.
I'd prefer not to have to ship them as they are heavy, shipping & Insurance could be costly; I'm in NJ, right outside NYC.