Well I did figure out why one side was a little higher than the other. I took off the left hanger and rotated the can and it came right up even with the other, live and learn. I rode almost 300 miles yesterday...wow what a difference on the comfort from the 04 GSXR600. I could ride this thing all say long. On the freeway the busa didn't vibrate the crap out of my hands and feet...it's so smooth.