That D&D pipe is probably the loudest pipe out there for that bike you can find other pipes hell you might even be able to find someone wanting to trade it for stock system. The ex500 is not easy to sell I had an spotless '03 with under 4k on it and had put it up for $3000 in August '08 at the time kbb value was just over $3800 I finally managed to sell it on ebay for $2500 at the end of October. There just are not many people that want an ex500 but if your set on getting one don't buy a 20 year old one when for a little more $$ you can get a much newer and nicer one. As far as 22k on that yzf only means someone actually rode it hell I've got over 25k on mine in the 3 years I've had it and I'm sure we've got people on here with way more miles. I believe Armith said he had somewhere in mid 40k on his. Most importantly though don't buy a bike only because your thinking you can resell it make sure it's one your going to be happy with riding if you can't sell it.