it is a jardine rt-1 off a rc51, chopped a little, had 2 d&d's that came on bike and hated em, i went 2 into 1 hopefully for a lil more power. finally got exhaust on and road it for first time this year. now clutches are slipping! i ordered new fibers and gasket today, i going to be running 10w-50 yamalube semi. oil, engine ice coolant with motul additive to run cooler, ordered some exhaust wrap. i ll make it high mount eventually but i ready to ride.