APR Performance Carbon Fibre Rear Diffuser Oxygen Sensor Adaptors The biggest flaw on the

The biggest flaw on the factory manifold is only 3 runners reaching the collector even though its a 4 cylinder

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APR Performance Carbon Fibre Rear Diffuser Oxygen Sensor Adaptors The biggest flaw on theNote: Due to high Demand these parts are currently sold out please check with your APR Sales Rep. for avaliblity and ETA . 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