RE: lack of answers....
 

Isn't that the truth. If there were performance parts available, I'm sure there is a certain segment of the minivan market that would purchase them. Sadly there aren't many parts available.

On the lack of responses. There are at least six Mopar minivan sites. Some peeps belong to one and others many. I have a Caravan, so some things are different between the platforms and I can't comment. Sometimes someone has answered the question to my level of understanding so why add anything ?
Not everyone who comes here can post because they aren't registered. Don't forget that if you aren't logged in, you are considered a guest which skews the figures. Some of the guests are looking for answers too, and don't have anything to contribute, so they don't join/comment.

Generally the advise here is pretty good, sparse as it may be.