Gear ratio
If there is one place I may toy around on mine it's the gearing. I'm assuming it will have 3:06 or so based on Viper and Charger configurations. If a a 6speed, some much steeper gears can be had and still be highway friendly. I'm thinking 3:73 on the low side and 4:10's possibly.
Be interesting to see what limited slip unit they use as well??