go with a gorr woods port. its fuckin badass and only like 250 bucks. its got a ton of low and midrange power. my brother has got the woods port in his and its fast. itll also pull a high gear. he trail rides and hillclimbs most of the time with a 16 tooth up front. i would def go with gorr, you will not be disappointed. on yea, at the regional hillclimb event( missouri, kansas, minnesota, illinois, iowa and wisconsin) he took 3rd. he was right there behind me and another guy who have alot more than 250 bucks in our porting.