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2002-2007 Subaru WRX and STI APR Carbon Fiber Rear Diffuser
02-07 WRX & STI APR Carbon Fiber Rear Diffuser 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...
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