Rear Bumper Diffuser for your Accord

People buy after market auto parts for lots of reasons. It could be because of a broken or worn out part  and an after market part iis cheaper than buying a new factory part from the dealer. Sometimes people purchase parts in order to enhance how their car looks. A rear bumper diffuser may be purchased for both looks and performance at the same time.  

•   I'm sure you have seen a  bumper diffuser on a car, but you might not have recognized what you were looking at. A bumper diffuser can come in various sizes and styles. It depends on the car make and what you are trying to accomplish.

•  As a vehicle moves through the air, there is a corresponding air flow over the entire car, both over the top as well as underneath. One critical item is the flow under the car. The air flow under the car probably is faster, which will produce a phenomena called down force. Down force tends hold the car to the road and improve hi-speed stability and cornering. It is a good thing, and the faster you go, the more you want. It is almost always built in on race cars and now it is showing up on more and more street cars. One method of increasing down force is a rear bumper diffuser. Here is how a bumper diffuser works.

•  A problem can occur when a high-velocity air stream from under the body  meets the much slower airflow of the ambient atmosphere coming over the car and behind the car. This collision of airstreams causes turbulence which can be dangerous. The rear bumper diffuser is designed to provide an area so that when the air between the car's airflow and the external airflow come together a boundary is formed and this area is then less turbulent. This is the key idea to keep in mind when considering a rear bumper diffuser. Your car may have been designed like some BMW's, Ferrari, Mercedes or other cars with a very high top end.

•   On a typical street car the rear bumper diffuser does very little until high speed are obtained. As mentioned before, many high end cars such as Ferrari, BMW, Corvette, are now coming with a stock rear bumper diffuser. Some have extensions under the bumper which can accomplish the same goal. A well designed bumper diffuser can both look good and offer you better high speed stability for your car..

•   In general, all after market rear bumper diffuser are either a replacement bumper with a built in diffuser section or a part that must be attached to the car which serves the same function as a rear bumper diffuser.  Generally you must cut one or more holes in your bumper before the diffuser part will fit and be effective.

If your need for high speed stability or a more unique look is worth a little installation time, then a rear bumper diffuser may be your answer to more stability and unique looks. However before you purchase a bumper diffuser, completely check out the installation instructions and the pictures of different looking applications using the bumper diffuser. You may want a bumper diffuser just for performance or perhaps because it also looks good. If you want both, then a bumper diffuser is for you.

Accord Rear Bumper Diffuser