RTR Signature Styling. Now you can add the same exact Upper and Lower Grilles that were featured as original equipment on the RTR Mustang to your very own late model muscle car. These Replacement Grilles were designed and developed with input from Vaughn Gittin Jr. to give your Mustang an aggressive race inspired appearance that looks awesome on and off the race track. If you're looking for a way to set your Pony apart from the rest of the herd, these RTR Grilles are for you.Improves Cooling. Not only will these RTR Grilles add great aggressive styling to the front of your Mustang, but they will also help lower under hood temperatures. With decreased surface area, these RTR Grille will allow for an increase in air flow across the radiator, when compared to the original factory grille. This additional air flow will help to improve engine cooling, which in turn will increase engine performance.Quality Construction. RTR designed their Upper and Lower Grilles using the original OEM CAD data from Ford to ensure a perfect fit. Manufactured from an OEM quality high pressure injection molded thermal plastic olefin (TPO) material, these Grilles are extremely durable and can hold up against the elements and the hazards of everyday daily driving.Straight Forward Installation. Designed to be direct fit replacements for the original factory grilles, these RTR Upper and Lower Grilles install reusing the stock clips and mounting points. There is no cutting or modifications required for a clean straight forward installation. However, it should be noted that removal of the front fascia will be required for installation. Installation can be completed in about two hours with just basic hand tools.Application. These RTR Grilles are designed to fit the 2013-2014 GT and V6 Ford Mustang models with the stock front fascia installed. The upper and lower grilles are available separately or in a convenient combo kit (select from choices above).