DR's required for a converter?
Once you run a DR, you'll save your F1s for the winter. 
Do remember that after you cross about 4K miles, you'll want to be extra carefull in rain. It's a good pattern for that first stretch but 6/64" of tread will go fast making the beaking breaking loose in heavy rain a definite thing to watch out for on the freeway.

Rick
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BTW: ive been beating the crap out of my nittos for about 8K miles now....50 or so track passes, more burnouts then i can count and a few not quite legal street launches.
they still have A LOT of tread on them and perform as well in the rain as they did when they were brand new....now snow....thats another story entirely.....
I have a new set of 317/35/17's now and they have about 4K on them with about 20 track passes I guess and I do some MAJOR burnouts and they don't look like they have been beatin up hardly any.
Even if you don't plan on doing a converter I believe nitto DR's are the best tire you can buy. They really hook if you use the proper techniques of getting em hot(on the street and track.
Josh S.
My only concerns about going to Nittos is that I live in South Florida....and it rains everyday from April through September and I don't want to give up wet traction. This is my only car...and I want it to be safe....and fun!
Do Nittos handle well? I'm thinking they don't handle on high speed on ramps as well because they are a softer sidewall...not stiff enough. Any truth to this?
In my experience, these tires are no different than regular performance tires except that you can heat them up and get a nice hard launch out of them.
Nittos are actually pretty good rain tires until the last few thousand miles of their life. Just sell 'em when they start getting uncomfortable in the rain and get a new set.


