Done it and love it. The gas mileage when I keep my foot out of it is actually better

but if I can't gas mileage goes right down the pipes if you know what I mean.

. The only drawbacks that I have really found is trying to keep from running everything that I come up on. Over all The biggest thing that I love the most is that the car is so much more responsive and peppy to drive. It braught back the whole feeling of driving the car for the first time.
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2000 Mustang GT