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I have to disagree.

I paid $450 for Epcos (got them custom at a little longer slashcut) and $275 for the Freak kit a couple of years ago and probably realized at least an 8HP gain. I am betting more...

On Brent's site, Epcos are now $425 and the Freak is $295



yea but epcos are supposedly louder and for me part of the equasion was volume which i don't like. So i had to go with what not only $/hp, but $/hp/noise. So i should have said "for me". But then again my bike even according to the thunderbike crew benefits far less for thier pipes than the 790 engine and from what a lot of guys have said they've realized that much of a gain with just the pies alone let alone any air/jetting mods. At least 2 people i've read posts from said thier 790's with Tpipes and air box mods (not freak)can lift the front wheel. mine hauls pretty god as it is but i could never do that, so i gotta think those pipes do give the biggest boost as pipes go.