[Java Junky]

I godda second what Go said Com. It's such a sweet, well-balanced unit that improvin' it, at least in the direction where it would better suit your style of drivin', isn't an easy task.
Not so much a matter of expensive bein' the only way to go as much as a havin' a well researched n' thought out plan n' a real commitment. Some of the folks on site have been pretty happy with some of the not-quite-so-expensive suspension components.'Thing of it is, you've godda have a clear idea of what you're settin' out to accomplish.
N' then hunker down n' brace yourself for a period of time while you're sortin' it out, "seasonin'-to-taste" so-to-speak. Gettin' it to where you wannitt can happen early on in the process. Sometimes. But not too often.
While you're sortin' it out n' it ain't as good as it was, if you ain't totally committed to seein' it through n' gettin' it right . . it'll have you wonderin' why you ever started screwin' with it in the first place.
One thing that you've got in your favor is that alodda these suspension outfits that are already set up for Stewie won't get you too far off course.
However you choose to fly, good luck n' keep us posted.
Be well.
Java