Last week I installed Fastway foot pegs on my bike and it was an immediate comfort increase. Nevertheless, as the boxer is an engine with some vibrations, I didn't like the all metal surface which connects me directly to the frame and the vibrations ...
A little trick made that better:
These are original rubber inserts from R1200GS foot pegs. They fit right in the Fastway as if they were made for each other.
The right one in that picture is slightly greasy - I just got it from SJ BMW and it was sitting on their shelf for ages, therefore I got them with a good discount and to be honest: I put my feet there, rain or shine, so it doesn't really matter whether they are a bit dirty or not, they'll get some serious kicking anyways.