Used V&H fuelpak model 61001. Had it on my 05 Heritage classic for a couple of weeks. Wife decided to keep me for another year and ok'd purchase of sert or pcIII and dyno tune. So, I posted it on ebay for $175 or best offer with free shipping. It does work as advertised. I did not get the bike dynoed with the unit but you can definately feel a difference in the bike and the popping/backfiring decreased dramatically. I'm running V&H 2 into 1's with a big ness sucker intake and bike was nice and smooth. Just planning some bigger upgrades so will go with the sert install during the cold weather. Thanks for looking.

http://cgi.ebay.com/ebaymotors/ws/eB...065016705&rd=1
http://cgi.ebay.com/ebaymotors/ws/eB...065016705&rd=1