As much as I'd like to get a new bike I just can't justify it - which brings me to this: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=35596&item=4538716387&rd=1#ebayphotohosting I need a spark arrestor if I go to the mountains to ride. I mainly do MX but will occasionally need a spark arrestor. Just buying a s/a for thstock pipe will cost 125.00 from ProMotoBillet. Is this a good exhaust and is this a good price? If you don't want to click on the link, it is a Yoshi RS-3 for $170.00.