I was melting my new Tech-8's on the Big Gun SDS head pipe. So I switched to a White Bros High Boy with the silencer, I got to be SA legal. I thought the fit was very good, and I installed a washer between the rear brake resevoir and the frame and installed a little of the heat tape. No problems so far, and no boot melting in the desert. White Bros told me to run stock jetting, I am and it is working fine. Seems like I lost a litle on the top, but the bottom and mid still seem to hit the same as the B/G. The plus is the I am SA legal and can ride in more places.