Will GT/Saleen, etc. Bumper Fit?

I was rear ended in my 05 v6, and had already had dual exhaust ran from the headers back. Just had the tail pipes turned down. When i took it to the bodyshop i told the guy i wanted the GT bumper. It does work....Only difference is that the GT bumper has a lip at the bottom to match the runners that go around the bottom of the car. Just had him paint it two tone to match. Only had to pay $75 difference in the bumper so the insurance company knew no difference.