I don't believe there are any exhaust differences between the '06 and '07, well other than the '07 has an O2 sensor. I have an '07 and I ordered my Scorpion exhaust from kneedraggers dot com on Thursday of last week. When I ordered I got an e-mail saying they were on back order and that it should be there by the end of the month. I could either cancel my order, or take 5% off and wait. If I waited they would bill me half of it then, and half when they shipped. I figured since nobody else has it, and I can get and extra 5% off, I will wait. So yesterday I got an e-mail saying that they successfully charged the first half to my credit card, AND that my exhaust was on the way to their warehouse and should be available to ship to me by today. I guess we'll see if I get a tracking number today.