I used Azenis on the 240SX when I first started doing track days at Summit Point. They're about as sticky as you're going to find for a true street tire (Bridgestone RE-01R, RE-11, or Hankook RS-2s are also in that group), but as noted they will still be considerably slower than the slowest R-compound. For comparison, I was able to run 1:38s with the Falkens at Summit, whereas when I started w2w racing with a set of shaved Toyos I was in the 1:34s right off. They will also get pretty greasy when they start to heat up, so you will have to watch for that. If you need something that you can use on the street also, they will work, but in the mean time you should keep an eye out for a used set of Toyos for next to nothing, and they will still be better than the street tires. What size do you need?