What should i be looking for as far as tire sizes?....Whats the min and whats the max.

Not sure if I want to go for 18" tires or 17" tires and rim.

Any feedback or help would be appreciated.

2003.5 G35 Coupe Brilliant Silver/Graphite/Premium/Tire Wheel/Aero

 

A topic covered in detail. Repeatedly.

Here are a few of the more recent discussions:
From this forum:
Going from 18" to 17"
Where to buy snow tires??
18" Winter Tires
From the Coupe forum:
Winter Setup?

And you'll probably find the same topics hashed out again in the Canada and NorthEast forums. [img]/w3timages/icons/smile.gif[/img] That should tackle the pros/cons of 17 v. 18 for you. As for min and max width, well, these guys go pretty wide in performance tires, but I hear them say that narrow is better for snow tires, so I'd suggest the stock tire size as your max width. The important part of the tire size is to try to maintain something close to the stock diameter. TIre Size Calculator

After going through all that, if you still have specific questions, fire away.

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter