Agent 47's High Flow lower grill replaces the the stock, non-functional lower grill on the 2005-2009 GT Mustang with a fully-functional lower grill that can be easily upgraded into a a highly effective brake cooling mechanism with Agent 47's Brake Cooling kit.
The lower grill can be installed in a matter of minutes by simply snapping out the original and snapping in Agent 47's replacement. The High Flow lower grill looks even better when adding a High Flow Upper Grill also courtesy of Agent 47.