I recenetly made the purchase of a 01 426 the bike has oodles of power but I want more and I'm looking into a jardine exhaust for and 03 450 that one of my friends have. I was wondering how many mods I would have to make to it to fit my bike and if jardine is even comparable to the FMF or GYTR. Also what combinations of head mid and mufflers that you may have found to be the best. Also if the are any tuning secrets or mods that I could do to enhance the power. Also any recomendations for jetting the carb would be helpful. Thank you and I appreciate all your replies.