Noticeable improvement on my otherwise stock 22 Mojave. Biggest improvement was on freeways and urban driving. I had to adjust the dial a few times to get it where I wanted.
On my Rubicon with stock suspension and tires, I could not feel much difference. Was it worth it to me, probably not but I didn't buy it. The Fox 2.0 ATS Stabilizer was a gift from my wife last Christmas, so this is the only place I will admit that. Now that I am lifted and running 35s, I would probably feel a more noticeable difference if I were to make the change today.
When I had a JL, it made a huge difference on the highway. I now have the JT, but I’ve read conflicting arguments saying if you change the oem steering stabilizer for an aftermarket, it gives the dealer the opportunity to say, you altered the stock configuration and voided your warranty.??