sway bars....

Redlinewins

The rear Stillen sway bar is only two way adjustable.

__________________
www.redlinewins.com

Phimosis

From Stillen's website:

Application Notes Description Part # Mfg # Price
2009 - 2009 370Z Front & Rear Kit
Non-Adjustable Front (29% Stiffer)
3-Way Adjustable Rear (37-70% Stiffer)
304375 304375
$285.19

Again, it is 3 way adjustable. This is simply lever arms making torque ratios. There are one short lever arm position and one long lever arm position on each side. I'll make up some numbers for illustrative purposs below:

Setting 1) left side long/ right side long: 5 degrees body roll gives 5 degrees of twisting of sway bar at 100kg per degree of rotation for total of 500kg extra spring rate on outside tire.

Setting 2) left side short/ right side long: 5 degrees body roll gives 7 degrees of twisting of sway bar at 100kg per degree of rotation for total of 700kg extra spring rate on outside tire.

Setting 3) left side long/ right side short: 5 degrees body roll gives 7 degrees of twisting of sway bar at 100kg per degree of rotation for total of 700kg extra spring rate on outside tire.

Setting 4) left side short/ right side short: 5 degrees body roll gives 9 degrees of twisting of sway bar at 100kg per degree of rotation for total of 900kg extra spring rate on outside tire.

Again, I made these numbers up, but it illustrates the point. Setting #2 and #3 are equivalent since the lever arm lengths are equal on both sides, therefore making the sway bar have 3 different settings.