The STI JDM Rear Diffuser is available for you to purchase to improve your aerodynamics, and it adds more style and value to your vehicle. This is a component that comes from a desired line of JDM components that sets your car apart from the rest, and makes your car a little more exclusive. It seems like our friends in Japan get to have a little more fun on the roads so they get a little more aero where it is needed. 

The STI JDM Rear Diffuser provides your vehicle with a more pronounced look without going over the top with erratic exterior modifications. This is a very subtle, and clean modification you can perform on your vehicle.