I have a 2010 G37x Coupe. It runs 18in wheels all around. I was wondering if there would be any issue if I swap them to 20in. Is there anything I would have to do or would it be a direct swap? All info would be very helpful. Thanks.

There are gigatons of information about wheels in both the Coupe and Tech/Wheels & Tires. Please browse those forums.

How wierd. I can't see my earlier post though it shows as having been added to this thread.

[edit] Now it's showing.

Welcome to the site. You'll find gigatons of wheel info in the Coupe and Wheels & Tires forums, so I'm closing this thread.