Is the ais removal kit the same for a 2012 as it is for 2011 and older wr450's? My dealer ordered mine and package does not show 2012. Also same dealer ordered my gytr powercore muffler and he ordered one for a 2009 yzf450?? I looked on the gytr website and they do make one specific for the 2012 wr450. Will the one he ordered fit my bike corectly? I saw a couple of people use the 2009 yzf exhaust and it fit. What is the difference? Should i just take it back and have him reorder? Thks and sorry for all the stupid questions.