when i first put my vance n hines pipes on my old gsx1300rw i rode it to work (mechanic put it on) i noticed my rear wheel getting sloppy and big white cloud of smoke behind me...i shut her off and coasted to edge...mechanic had line to oil cooler too close to head and didnt have it insulated....he picked up and replaced and cleaned for me for free. month later i wrecked it falling asleep.