I would think that with any pt pipe you really dont feel the powerband "hit" so to speak because they smooth it out, so it kidn of seems like theirs no power on top, thats just what i'm thinking. but, I would say you would gain top end power switching to t5's, they do have more over-rev. I emailed dan @ patriot about the mx port with t5's a while back and he replied the t5's respond with the port and will work well for agressive/open type riding, so i'd say go for it.