talbott

iTrader: (10)

Im looking to trade a guy locally my 16 inch wheels for his 17s off an IS300, Im a little concerned about 2 things.

1. will the 7 inch width be super noticeable? I know the rear already looks a little sunk in, will this only get a lot worse?
2. what tire size should I go with to avoid any speedo issues and not have to worry about that brake failure that tire rack is preaching about?

talbott

iTrader: (10)

Bump, someone has to know something about this.

2jS160

iTrader: (6)

OEM tire size on the 17x7 IS300 rims came with 215/45 17" and has a 50 offset which is the same as the GS. You can go as wide as 225/45 on the 7" which is 1" or 10mm diff from the OEM 235/45 size of the GS.

mitsuguy

iTrader: (2)

Yes, It will look worse, because they are the same offset, half of the difference in the width of the wheel sunken in more...

You can fit 235/45-17 on the IS300 wheels, it is technically too wide, but easily doable and no ill effects, I have 235/45-17 all around on my IS300 and stock wheels... This is the same as the 17" GS's run, so Speedo and everything should be pretty close...