After doing some reading it appears my unit doesn't have the Yamaha sound deadening kit that was standard on the 2015s. While mine is a 2015 model year and showed a build date in October 2014, the dealer had only just received it from Yamaha on 6/17. So I'm guessing it was sitting around Yamaha's facility for a while. It didn't even have one mile logged on it before the dealer took me out on a familiarization ride with it the other day. Hadn't noticed it missing until I heard about this kit and knew what it was supposed to be.
My 2015 also came without it. There is another thread on here where it was discussed that turned me on to it also. I called my dealer and they ordered it free of charge. They offered to install it but I did it myself with no problem.
Well this Viking was something of an anomaly. He got a few camo non-EPS in when he never orders non-EPS. Story goes he had already accepted them and was assembling when they noticed they didn't have the EPS. He set me up with a good deal though with a pending EPS install so I'm willing to forgo the EPS for a while to save some coin.