Not going to happen unless you REALLY know what you're doing.
First: Is the car out of warranty
Second: Do you have the money and know-how to do this?
Third: Know that your will need more than just a turbo kit and hopefully you'll understand that this is just a hopeful dream of yours that you should crush.
My LS can easily smoke some Mustangs, so it IS possible.
It can be done with a turbo kit, a build, and a good tune.
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OP, I'd recommend researching a little bit. Get to know how turbo's work, etc. Professional install would be the best route, but keep in mind it will get pricey.
Before anything, do you have a budget? Set a power goal that's within the budget. Research and find parts / kits to satisfy your goal within budget, and do NOT cheap out on tuning, or you will regret it.
Here's a few links to help:
Turbo basics:
http://www.beesandgoats.com/boostfaq/g2icturbo.html
Garrett turbo Info (LOTS of info here):
http://www.turbobygarrett.com/turbobygarrett/turbo_tech_basic