2006 WR450, I just bought a white brothers system for it but I have a few questions. The whitebrothers site doesnt show a pipe made for my bike but I talked to their support team and they said its the yz pipe. The only reason they dont show it is because the yz pipe is at 102 db where the wr pipe would need to be 96 db or lower. They sent me an 06 yzf pipe. Will that mount up and work with my WR? I thought they changed the frame of the YZ in 06 so will it still fit? Also they said I dont need to rejet the carb. Does that sound right? Any help would be great. Thanks Guys.