I was told the FR booster cushions are for the MBS series only. However, there are a lot of good options for the E-450 available on line. All at better prices I might add...
Hint: When I'm searching accessories I always list my E-450 chassis as 2013 or 2014
not a 2016. A lot of websites assume that
all E-450 production stopped a couple years ago not just the passenger version. There are very few differences between any of the model years of the current generation of E-450s. If you are looking for chassis parts, as in the drive line, you do want to use the correct model year. We have the newer 6 speed automatic that came out for 2015...
There are also very few trim differences between the Forester / Sunseeker. In the Forester sub forum there is a very good thread on mods to the GTS 2801.
See Here. Anything in that thread applies to our 2800's as well.
I've found it is a very good place for questions and mods to the GTS...