I know the advantages of putting in the 03 450 exhaust cam,but is there any benefit in putting in the intake cam as well? I may be buying a used set of the two cams,and couldn't find this info in my search on this forum.(It's probably there,but.......)Thanks alot. By the way, I noticed the new 450 yzf is similar in weight to my 426......I knew Yamaha would see the error of their ways,and return to the pinnacle of Dirtbike supremacy,that is the YZ426F!!!!!!OH YEAH,I said it,you know it!!!(Sorry...Too much caffeine).By the way,I will trade my superclean 2002 426f for your 2010 450f.My loss,your gain.