well, i got the pipe mounted with some little plates i fabbed up that the exhaust port bolts go through... but the pipe has a leak at the junction where the pipe goes overtop of the bolt-on exhaust port. AND... when the motor variates, the can hits the swingarm. so i guess the best idea to get the silencer to clear the frame is to put a torch to it and give it a little bend? i had to take the chain tensioner bracket off, because the can was hitting that, too...