I want to beef up my rear tires with some 315's, however I'm having a hard time trying to decide which ones to go with. I want to have the same tires all the way around, that is 275's in the front and 315's in the rear. I also would like preety practical tires in terms of wear, however I also want better traction than the F1's that came with the car. Please share your experiences and what tires are best.

Thanks to all
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02 WS6
slp louthmouth, granatelli MAF, K&N FIPK, BBK throttle body, JBA shorty headers, hypertech programing, 160 deg. thermo, MSD wires, eibach sportline, anti-squat kit, adj. panhard bar

 

You need different wheels. 315's on a 9.5 inch wheel is not a good plan. treadwear will be awful.

 

i have done it and the treadwear isnt that bad but yes it is more then normal

 

you can put 315's all around.. although I'm not sure how friendly that would be on the street.. seach the autox/roadracing section, a few people have 315's all around (mainly for track though)

 

in the front im preety sure it would rub.....my 275 are centimeters away from rubbing

 

315s on 9.5 is possible (I've seen some pics) but the 285-40 look better and are cheaper - I'll buy some BFG-KDWS soon, that's the cheapest name brand tire I found so far and it got pretty good feedback.
The front tires.... well, I don't like the 275s that much - maybe it's just the brand (I have Sumitoyos right now) .. I thought about 255-45s for the front, acc to the specs that I got from Tirerack.com it would fit and the diameter is as big (26.1") as the 285s in the rear.... that would be 0.4" bigger than the 275-40 - I guess that won't hurt the speedometer ... if you like your 275s in the front then just stick with them and go with 285 in th rear, that will look better than the 315s on a 9" or 9.5" rim