I wanted NT555 for my car but the only ones I could find in my size was the G2. I had a set of those on the car, they were noisy as hell, zero traction, and tramlined horribly. They were used when I got them so that might have had something to do with it but they were bad enough that I didn't want to risk a new set.
My Mach got totaled before I ever tried the g2s hasn't had another "performance car" since other than a Saturn Ion redline.
That Saturn was a sleeper. Changed the pulleys and put a ram air on it and would run consistent mid 11s in the quarter mile.