quick question about tire ratings... are Z rated tires necessary for the ssr's?
can you get comparable performance with a lower rated tire?
i ask simply because my 04 isnt going to the track. just used as a daily driver, albeit sometimes at higher speeds than the posted limit

..
only mods to it are the cold air kit and a diablo performance tune.
definitely not breaking any speed records with it, but wanted to see if anyone has tried a lower rated tire.
thanks
joey