Just following up on this, in case someone else ever runs into this situation, as I have some free time - I ended up having to call Skiers Choice and they provided me the item number for the mufflers and a cost. They could not sell directly to me (only dealers), but they have a great relationship with SkiDIM. SC told me to call SkiDIM and place an order with item number (special order for SkiDIM), but was way less then going through the dealer. SC and Ski DIM were both great to work with.

I am looking into a FAE system this year, hoping there is sale in the near future.