The key to success is a good driver as well as minimal dive and sway which you'll experience alot of on a Tour' w/stock Struts and Springs.
A good Package for success in your local is a complete suspension setup, Springs/Struts (reccomend: H&R/Bilsteins), Rear Sway Bar (reccomend: Aussie), Rear Strut Tower Brace (Any). Brakes would be a big plus but since top speeds are not extreme in Solo2 you should do fine with stock brakes, SVT preferred. If you do plan to upgrade your brakes this is a cost effective measure (3 things) that work, Performance Pads, Steel Brake Lines and Competely Flush Brake Fluids w/Super Blue Brake Fluid (comes in a blue rectangular can). The most important package of success though is the natural born talent to drive, some have it, some don't and some just develop it.
By the way, I found that after installing my Quaife in the Trans it easily knocked off a second or two, that was by far the single most largest gain I seen in a single product....Aloha