The challenge with building with the R1 pipe was that it had some exotic material in it and the welder who did the work was not able to cut and shut it in the way that I had originally anticipated. So I ended up with a much longer pipe to the muffler than I wanted. Plus the metal working shop that made the adapter for me that sat between the header pipe and the muffler made a much longer piece than I was anticipating - I needed this piece because the end of the header had been hacked off at some stage in its life. As a result the muffler ended up further away from the motor than I wanted.
So I began to look for alternative tail pipes and came up with the Suzuki model. At the same time, I had another shop make me a new joining piece that was much more compact and I was able to tuck the muffler in closer to the bike as I had originally intended.