02intriguemjc

Any advice on what I can do / buy to upgrade (tighten, improve handling) my 2002 Intrigue suspension? It wallows all over the place, and has since new. Dealer says nothing available - can only replace with new orig. factory struts. I have installed front & rear strut tower braces but really need stiffer shock inserts, but can't find any after market parts available. I'd rather not go for lowering springs without stiffer shock/struts because the ride may become stiffer, but "pogo" without more damping. Please help!