the bonnet will fit onto you car without the gt4 bumper, but the center of the gt4 bumper is slightly raised where the vent is. It will leave a small gap if you use your current bumper. You can see the small gap in this picture from a member here (NEVERSTOP) with a GT4 bonnet, and a non-GT4 front bumper.
This post has been edited by MaskedMan: Sep 21, 2006 - 5:00 AM