I have a 2003 LS430 with the 17" rims. I found a used set of rims that I like from a 2013 IS250c that are 18". If I use tires that will keep the tire diameter the same for the speedometer/odo can I use these rims? Thanks.

 

By the looks of it I dont see why it wouldnt. Only thing you should check is the hub size and that it clears the brake calipiers. The bolt patern is the same and the offset will work.