I am getting the KTM 505. I am wondering if the KTM 450 pipe is the same as the 505. I know the basic difference in the bikes are the crank and the piston/bore. Leo Vince doesn't make a pipe for the 505 yet, so I am trying to find out if the 505 is the same as the 450 because I know they make a pipe for the 450. Does anyone know if they are the same. If the size of the header is the same then it will work because the 505 is in the 450 frame.