I recently obtained the Whiteline 24mm adjustable rear anti-roll bar for my Octy VRS (Whiteline item BWR20XZ). This give three optional settings of +57% +95% +150% over the original OE bar.
Fitting
Fitting is very easy and took less than 30mins (although I do have a workshop with pit and a fair bit of experience).
Tools needed: 10mm spline bit; 6mm spline bit; 16mm ring spanner; large flat-blade screwdriver.
1. First remove the drop link lower bolts each side of the OE bar. Use the 16mm ri