Dress-up the exterior of your Dodge Challenger with carbon fiber, molded to precise dimensions that only pre-preg. materials can achieve. These parts are exotic-looking, race-inspired, and are unmatched in quality. Diffusers work in conjunction with other aerodynamic components of a car to help produce downforce. Because a car displaces air as it moves forward, the air molecules in the rear of the car get disrupted causing a vacuum of low pressure air. To help channel the high speed air flow coming from underneath the car, diffusers redirects the high speed air flow to transition smoothly into the low pressure vacuum in the rear. This encourages a smoother flowing air flow underneath the car and allows better performance from other aerodynamic components such as aerodynamic wings. FeaturesPre-preg. Carbon Fiber Manufacturing Process - Vacuum-bagged and cured in the autoclave at high temperatures, ensuring quality, durability, and extremely-high strength-to-weight ratios. Fade-Resistant Clear Coat - Finished with UV-stable, production clear coat paint, then individually hand-polished to a brilliant shine. Installation - Designed to factory specifications for easy installation and clean fit and finish. Material of ConstructionCarbon fiber Product Fits2015-23 Challenger wide and standard body (fits all but SXT models) Includes1 - Diffuser ShippingGenerally ships within 2-3 business days