This upper grille only fits the Roush front Fascia. It does not fit OEM Fascia. The five-blade upper grille fits 2015-2016 Mustangs equipped with the R7 Roush Performance front fascia. It increases air flow to the radiator over the stock grille and is made from light and durable ABS plastic. ABS is used by most OEMs and ROUSH because of its high impact resistance and heat resistance. Like all parts in Roush Performance body kits, OEM provided CAD data was used in the design, for factory floor levels of fit and finish with no cutting or sanding required. The Roush Performance High-Flow Lower Grille completes the look to bring the front fascia of your Mustang to the next level. The part number for this item is Roush 421856 and it fits 2015-2016 Ford Mustang (Roush Front Fascia Equipped Models).