APR Rear Diffuser 2002-2007 Subaru Impreza WRX / STi stingray grill mesh 21×9 | 21×10

21×9 |  21×10

slipper skirt forged pistons designed for aftermarket 6

Carbon Fiber adds $1400 total to "Standard Color" price below

SKU 1151H611 Year Range 2015+ Engine Type 5

Drive it for a week

APR Rear Diffuser 2002-2007 Subaru Impreza WRX / STi stingray grill mesh 21×9 | 21×10Diffusers 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 the rear. This encourages a