Whos running what brand? and how does it feel compared to stock?
steering response?..roll?..ride?..under/over steer?
Im looking to buy an anti roll bar… mainly the front…
and wanting the useful opinion and technical knowledge of people who have them!
personally looking for an adjustable but curious on whats the good word!
So many choices!
Tanabe, Cusco, Whiteline, ebay, Megan… w.e!
tubular, solid…?
diameter?
price?
I installed the Tanabe DS0070R rear sway bar on my s13 in the beginning of last summer, and i noticed a huge difference right away compared to stock. This swaybar is a really nice piece and the car felt awesome and solid without any body roll. I installed all new Energy Suspension endlinks and swaybar bushings at once so my results were great
I have tanabe in front and hicas in the rear. I may consider a thicker bar in the rear. Tanabe’s bars are prime quality, super lightweight 
I wouldnt go with other bars, this is the most reasonable thickest hollow bar to get. The only other thicker options was largus which is out of production (also a high quality piece but was very pricey) and sikky (the guys with the v8 swap kit), their current bar is the thickest on the market and hollow and clears any motor (RB, V8, etc…)
I like my tanabe though.
Anti-roll bars allow us to control the suspension in all four modes of motion and allow us to control roll, ride quality and load transfer. It is quite true that for vehicles with sprung mass commonly encounter on roll have only a small effect on overall load transfer. It is also true that we can achieve any roll gradient ( how much the car rolls per unit of lateral acceleration) using only the ride springs. And finally, it is true that we can get any front/rear distribution of load transfer using only the ride springs. So why not just do that? Anti- roll bars and other inter-connective springing devices offer the following advantage; they let us independently control wheel rates in the four modes of suspension motion - roll, pitch, heave and warp. they let us achieve better control of roll for a given quality and they afford us a way to readily adjust front / rear load transfer distribution, with a minimum of effect on other things. The anti roll bar transfers load from the inside tyre to the outside tyre and so reduces mechanical grip as they add spring rate. And the effect is not linear. The stiffer the bar in comparison to the springs the greater the loss of mechanical grip. If one chooses to use a front or rear anti-roll bar, the effect resulting from the loss of mechanical grip will have to be accounted for by softening the springs enough to bring the balance back to neutral.
Very good explaination