i have ran 24.5x8.5x15 on stock b14 wheels, only issue is that if you run a coil spring which utulizes the spring perch on the strut the sidewall is extremely close to the perch. easiest thing to fix this is to bang it upwards and away from the slick with a big hammer. i had to do this while at the track because i didn't test fit prior to going. other than that it does work