Well I don't think she'll hang a lickin on a fresh twister, but I don't know of any other 440 fan that'll come close. Ya, I went all "jabber, slobber, hoot" over putting Phazer jugs on top when I heard of that too. If you haven't ever seen that Exciter done like that, it's well worth a look. Airbox and all and it looks factory! I think I have the pic of it here someplace. I'd love to ride it!
After the reeds, if you really want to wake it up, put an Aaen pipe on it. I don't know if you can buy them anymore or not but if you talk to Olav he will design the perfect pipe for your use and sell you the parts quite cheap. I don't recall for certain so I might misquote here, but I think its good 10 to 15 more hp on the trail pipe! Whee!