I've got a pair of NITTO NT-01 315/30/ZR18. Like new 1 track day.
asking 225 ea. At the NCCC highspeed at Roebling Road in Nov. my short times were consistantly quicker than cars in modified classes. I believe it's because of the aspect of ths sidewall 30%..
This is like having a 4.09 gear. Very quick off of the line, smooth shift to 2 hard into the and four. wind fourth more than you we able to before. Quicker and faster trap speed. Low aspect sidewall and "R" compound. Very quick.
My car is probably quicker with these tires than with my (standard size and not streetable) Mickey Thompson ET Streets