Porsche 991.1 GT3 Rear Diffuser 2013-2015 2003-2010 Viper SRT-8 UV Resistant CoatingEach APR Front

UV Resistant CoatingEach APR Front Bumper Canard is made with UV-stable epoxy and clear-coat materials for resistance against fading

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Porsche 991.1 GT3 Rear Diffuser 2013-2015 2003-2010 Viper SRT-8 UV Resistant CoatingEach APR FrontThis item does not fit 991. 2 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 transition into the low pressure vacuum in