Acutally the Nitto DR's are designed to drive of the street. I know a few who got 13000 to 15000 on the street with them. I have them on my Z28, just replaced them with about 8000 miles on them. Probably had 3000 to 4000 left on them. The 305/35-20's have a fairly small sidewall and shouldn't flex as much as the 305/45-18's. I ran mine with about 30 to 32 lbs for a couple of thousand miles on the street. I only know of one LX running them on the street. That's Carl, fast56K, on his stroked Charger SRT8. The last I heard, he loved them on the street.
thanks. i know they will not be a good tire for hard cornering . it is common sense when running a wider tire than is suppose to be on your rim. thanks for the info. it is good to know. i will only be using them on car for track weekend. i also have my 22s from my magnum that i will be using for most of the summer.