I know this subject has probably been beat to death but I'll ask anyways. I need to get a little more power out of my Foreman but don't want to do any engine mods like a bbk or anything like that. Will the HMF do the trick and do I have to rejet if I put one on? What about air filters, would the Uni-filter be better than a K&N power kit? I do a lot of hunting from my 4man so I don't want anything to loud either. Thanks guys and gals.