I just purchased a 2007 Mustang GT, Tungsten Grey. The car has axle back Flowmaster system and everything else is bone stock. The car has 30,000 miles. It will be a car that I put around 7,000 miles a year from here on out, and will only be driven on nice spring/summer/fall days. What I'm looking for is help on which way to take the "modding". I have about $2200 cash that I'm willing to spend at this time. I do mostly highway cruising, not much of a "track" guy. I hope that helps in the suggestions, as I'm looking to make it faster from 45mph to 100+mph rather than getting of the line in a drag race type setting. All suggestions/opinions are welcome, I appreciate as much detail as possible (even suggestion on what BRAND/MODEL is the best for each "mod"). Much appreciation to all!