Just got my wr426. I havn't riden it yet but will this weekend. I had pro-taper bars put on with that new clamp along with the lever gards. Problem is I don't know what pipe is the best. It seems like no one wants to put out any real stats on their stuff, HP Gains etc. I want to spend some money.... what should I get? Has anyone tride the YZ timing on this bike yet?