I went on Tirerack.com to look at tires and the tire size recommended was 245/35-18. Trouble is there are very few tires out there in this size. Could I go to a 40 series without worrying anymore about rubbing? Thanks!

 

If you go to a 245/40/18, you'll only increase your tire diameter by about 1/2". This is contingent upon having a rim that is the proper width and offset.

 

Diameters of various sizes:

225/50-16: 24.86" (OEM of pre 04)
235/35-18: 24.48" (-0.38")
245/40-18: 25.72" (+0.86")
245/35-18: 24.75" (-0.11")
255/35-18: 25.03" (+0.17")

The two sizes that closely match OEM are 245/35-18 and 255/35-18

 

Well my wheels are 18" LE37t's. 18x8.5 with a 50mm offset. My S is lowered 1.4" in the rear and .8" in the front. anymore thoughts? Thanks

 

I currently have 235/40/18 on my 8.5" rears... I'm planning on getting 245/35/18s

 

I have 255/35/18 on my 9" rears with 55 offset and espelir springs... Rubs over bumps at 35+mph (intersections)