well now that my season is done I'm racking my brain trying to figure out what I can do to my 06 M5 to get more out of it. I want to cut the track down to either an 1.25 or to 1.00 from the stock 1.6 and stud it. But with past sleds I've studed you lose alittle from doing this I'm also thinking speedwrex clutch kit , V force 3 reeds and maybe a feul pressure regulator to lean it out some since I'm riding mostly at 480 feet will all this work or am I'm going down the wrong road to get more power. Keep in mind this is going to be a summer project not to get back on the snow now. but I would like to have a game plan.