Check out this awesome video of the 5.0L engine on the dyno, this new V8 engine now pumps out 412 horsepower for the 2011 Ford Mustang GT. As you watch the dyno video you can definitely hear the big horsepower coming out of the engine. It's one serious engine, can't imagine what the new Mustang GT will be able to do in the 1/4 mile with this thing under the hood. I'm definitely hoping for mid 12s!