Hi! I am wondering if 18 x 8.5 +45mm (maybe 9.5 +45) will fit on a 04 is300 stock suspension? for the tires, I am thinking about 225/40/18. I am excited to buy new wheels but am very hesitant because of fitment. Any advice will be greatly appreciated. Thanks in advance!

 

https://www.my.is/threads/wheel-fitm...i-need.413953/

That should contain what you're looking for!

 

Checkout this video it really helped me out.
Then I went to https://www.fitmentindustries.com/ the great thing about this site is the amount of pictures they have in the gallery. I saw my exact car with the exact fitment that I wanted to do. when you pick out rims and tires they ask you questions about your suspension and brakes just to make sure it fits.