Basically... I'm wondering if a stock eaton blower off of a 03 or 04 cobra will bolt onto my 03 GT. And If not, what do I have to do to make it work, and is it worth it?

Let's lay this thread to rest, as the answer lies within the thread linked above.03ghoststang said:here you go all your questions will be answered here:
http://forums.stangnet.com/showthread.php?t=666666&highlight=eaton