Impreza header options allow you to reduce the inefficiencies in your exhaust flow, resulting in improved horsepower, torque and better energy transfer at all stages of the driving process. Upgraded Subaru Impreza headers are lighter and more nimble than standard options, improving the fuel efficiency of your vehicle and improving energy transfer to take your horsepower to new heights. Short of completely upgrading your car, this is one of the very best options to get even more out of your vehicle. With our 1-year lower-price guarantee, you can upgrade your car at a much better value than other options.