i just decided what wheels i want and they are on here. axis powers
they are 20x8.5 and 20x10 front offset is 40 and rear is 45.
will i need spacers and what other problems would i have istalling them? or should i go with the 19x8.5 and 19x9.5 35 and 40 offsets?
i have no clue.
thanks
pics of that offsets on a gs would be great.

 

First, there are pics everywhere on offsets, some threads made just for that too on the GS.

Id personally go for 19s cuz i feel 20s r too big. I have seen some nice 20s on a gs, but rare. As for offsets maybe u can go the low 30s or high 20s to have a conservative look. Other problems would be the hub size on the rims, in which you wold need hub rings from aftermarket wheels to lexus specs. I think the gs is like 60.1 and the average aftermarket hub size is 73.1?? but dont quote me on that. This will keep you from wheel wobble while driving. As most people would say, roll the fronts shave the rears, there is a DIY thread on the stickie. The look of the wheel would also depend how low you are too.

Once again your topic has been asked. GL with ur purchase.