Back Bumper Diffuser

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16 Item(s)

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Shaharyrar Trader is a top-quality online accessories store based in Pakistan and provides free nationwide delivery. The company has got the complete range of top of the line car accessories under one roof. The company also got the complete range of Back Bumper Diffuser for all the major automobile manufacturers.

What is a Bumper Diffuser Rear?

Back Bumper Diffuser is basically a part of the vehicle that helps to efficiently increase the downforce of a vehicle. This results in reducing aerodynamic drag and increase grip.

When the vehicle is on the road, then high-speed air passed underneath the vehicle at low pressure. As the air passes underneath the vehicle, all the air expands to through an expansion chamber. With the help of this expansion, the pressure is increased and airspeed is reduced.

In order to elaborate on the working mechanism of the car rear diffuser, the pressure of the air gets affected by the diffuser, which helps to normalize the high air pressure, when a vehicle moves on the road.

When the car moves downward on the road, then high-speed air passed underneath the vehicle at low pressure. As soon as the low pressurized air reached the back portion of the vehicle, it expands in an expansion chamber.

Important Parts of a Car Rear Diffuser:

There are some important parts of the car rear diffuser, which are mentioned below:

Expansion Chamber:

The main purpose of the expansion chamber of the diffuser is to create an air pressure difference between the underneath and rear end of the car. The difference in the air pressure helps to create a vacuum, which helps to suck all the air out of the back to create an effective aerodynamic grip.

Vertical Fins:

The vertical fins of the car rear diffuser help to maintain the smooth airflow out the back of the vehicle. If there is no rear diffuser is installed in the vehicle, then all the process of the airflow underneath the vehicle can become turbulent and it affects the overall stability of the vehicle. On the other hand, the laminar airflow helps to increases the drag and decreases turbulence.

Smooth Underbody:

The smoother the underbody of the rear diffuser, the more it helps to lower the aerodynamic drag. Moreover, smoother underbody also helps the quicker airflow that passes to the rear side of the vehicle.


The main purpose of using the rear diffuser in the car helps to enhance the downforce and increase the speed of the car. This is the reason that a number of car companies are now using the top-quality car diffuser to achieve the same result.

If you are looking to purchase the aftermarket car rear diffuser, then you can easily do so just by contacting the Shaharyar Traders for the very same purpose. Apart from car rear diffusers, the company has also got a complete range of other car accessories at competitive prices.