As far as mods go, it depends on the driver. The only things that are a must are getting your vehicle(s) winterized. Since you are coming in the summer, take it to the dealer up here. That's what I did. They know what you need and only charge 495.00 for everything. Tires are another upgrade for the weather. I run st max, but any aggressive tire will be fine year round. Those are the must haves, everything else is only necessary when talking to your spouse!