Thank you for the complement! I'm just using an old beat up Sito+ exhaust muffler that I found in my shop, so no fancy pipe (though I think a PM Tuning up-n-over pipe would look spot on for this particular project). It took some heating and bending of the down tube to fit the Sito. As for clearance for the rear wheel, I had someone sit and bounce on the rear while I was hanging off of the back of it. I couldn't see that it was rubbing anywhere. Of course there's no way I can dismount the tire with that MRP box installed. It will require me to remove an additional 4 bolts to remove the box, but it will be well worth it to have all that extra space!
Beautiful work and attention to detail. Iím sure youíve thought about it, but with the bottle and MRP box mounted, have you left yourself enough room to fit a pipe and enough clearance for the rear wheel?