My Ridge Grapplers have been the first Nittos I've ever owned and so far I've been very pleased. They are smooth running and were nearly as quiet as the factory tires for the first 2k miles. Since then I have noticed a slight increase in road noise, but not to the point where I consider it a problem. I only noticed because I had the radio off for a bit of highway driving the other day and noticed that they are singing a bit more than when they were brand new. With the radio going, you'll never know you have such an aggressive tire under you.I will upgrade to Nitto grappler 265/50/20 soon.
I've now driven on and off road, in rain, light snow, sand, and some mud and the Ridge Grapplers have been excellent in all scenarios, I can highly recommend them. I'm hopeful that they will be a good fit in the factory rims because the Passport really does deserve an aggressive tire.