Originally posted by rankink
I run 16 inch Kuhmo 712's on my WRX for autocrossing/street use right now until I wear them out. Then I am upgrading to 17's for the street and getting some victoracers for the stock wheels. I have done 5 autocrosses this year with the 712's 5+ runs each, and one being a 2 1/2 minute road course. Of course you will have wear, but not terrible. I still have plenty of tread left. Just keep up the pressure on them when auto-xing, and rotate them frequently. I am about to flip the tires on the wheels also, so I have more tread on the outside again.
The 712's are the not the best, but are sticky enough for getting your experience up.
nice input... what width did you go with??