Ok I had some stock bridgestones on my s2000. I noticed that there was more steering resistance when turning left than turning right.
I had the alignment, tire pressure checked multiple times and even tried replacing the front with stock replacements. No change.
Now, I have replaced all 4 with BF Goodrich G-Force. Now the steering resistance problem is about even with a little more resistance to the Right instead of left, so its like the steering feel has reversed itself.
Is this common in performance tires ? I had no strange wear or alignment problems.