Don't rush your decision , deals here, craigslist and ebay come along actually quite often, and if you explore our forum, you can find the techniques for doing a "bafflelectomy" on your existing pipes yourself, better pipes are only part of the equation of the power gain achievable with these great engines we love so much, me, I like Epco s, really though, they are all pretty good as far as I can tell, or speaking arbitrarily, I feel strongly both ways, so I have an '06 that sounds like a Singer sewing machine and a '05 that will awaken the dead