Evangreco, Ford dealers still sell it. And if you buy it from them it comes with a template (at least thats what the local Ford dealer told me) for mounting it. Cuz trust me, mounting that spoiler without the template is a total PIA (I added a prepainted spoiler to my 05).
1966 Mustang Sprint 200--Wimbledon White
1998 Mustang V6 Coupe--Silver--RIP, Totalled by brother
2005 Mustang V6 Premium Coupe--Sonic Blue