im getting some g35 stock 19s with 225/40 and 245/40 on them right now... do i have to stick to that size or can i put 245, 275s on them? goods and bads if it is allowed?

 

275 is too wide for that width wheel. The widest I would go is 245/35/19 and 255/40/19.

 

I wouldn't recommend anything other than the OEM tire size on OEM wheels. The OEM 19" wheels are 8" front and 8.5" rear. You also have to be careful that the overall diameters of your new tire sizes are within the acceptable parameters for the VDC.

If you want 245/35 front and 275/35 rear you should really get some aftermarket wheels in 8.5" front and 9.5" or 10" rear. Keep in mind too that the OEM 19" wheels are forged and made by Rays for Infiniti, as I recall. So, I recommend that you replace them with some lightweight forged aftermarket wheels to keep your unsprung weight in check.

 

damn... so i guess im stuck with 225 and 245

im doing a straight swap with this guy.. my oem 18s for his oem 19s... his having more rash though... worth it?

i figure they are heavier, but i dont track or anything much... i also have tein s-techs, so will it affect my ride height or comfort any? does it matter if i get 225/35 vs 225/40 & 245/40?

 

245/35 and 265/35 is what i would run