Greatly reduces the amount of dead spot in the center of the steering vs the stock stabilizer. Almost no bump steer now vs. stock which was all over the place. I put about 80psi air in the cylinder. You can use this pressure to customize how you want it to drive (steering firmness, reduce bump steer, reduce dead spot). Not that the volume of air it uses is very small, so it's tricky to get right. To fill mine, I set the regulator on my air compressor to 80 PSI.