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If you haven't, you must check out the sweet machines SMS puts together in their shop. Here are a few specs on the new '10 Mustang hopped-up by SMS: 612 rear wheel horsepower. This figures out to 720 at the crank. That should be enough to get the party started.

What is SMS you ask? Steve Saleen left his own company two or three years ago to start something new. (His reasons behind this decision are detailed all over automotive websites--go look if you need to know the nitty gritty.) He offers packages for the new Challanger and now the 2010 Stang.
Per usual, for more info co go their site: www.smslimitedusa.com