You will want to consider the latest shock spring package available from Performance Unlimited. I installed this setup on my SPF a couple of weeks ago, but have not been back on the road yet (just finishing up an engine install).
http://performanceunlimited.com/cobr...cksprings.html
Perhaps someone already using this setup can chime in?
There is also an upgraded sway bar setup available, with new front & rear bars and end links (I haven't installed mine yet).
http://performanceunlimited.com/cobr...pswaybars.html
I have heard lots of good reports about both of these items.
Olthoff also has suspension upgrades available, along with a big brake kit.
http://www.olthoffracing.com/index.p...d=84&Itemid=23
There are some very active SPF track drivers out there. Let's hear from you!
Jim Kellogg
Breesport, NY