Designed to fit the intake area of your vehicle, aFe's throttle body spacers cause incoming air to tumble. This improves atomization of the air mixture before it enters the combustion chamber, thus helping the engine to operate more efficiently.
The person who took my order was extremely helpful in getting the correct mirrors for my Sierra truck, I was very happy with the service and the mirrors fit like a glove, Thanks for the great extra mile service. I will be a customer again! And fast, they were here in 2 days!