A diffuser is a device used to distribute and redirect airflow in a car. It is most commonly used to distribute airflow from the car’s air conditioner and heater but can also be used to distribute airflow from the car’s engine cooling system or from an aftermarket air conditioner. Diffusers are often made of metal or plastic and are mounted behind the car’s grill.
The primary purpose of a diffuser is to distribute airflow evenly throughout the car. In most cases diffusers are used to distribute airflow from the car’s air conditioner and heater. By distributing airflow evenly diffusers help to keep the car’s cabin comfortable and prevent hot and cold spots. In addition diffusers can help to reduce noise from the car’s air conditioner and heater and can help to improve the car’s fuel economy by reducing drag.
Diffusers can also be used to distribute airflow from the car’s engine cooling system. In some cases diffusers are used to distribute airflow from an aftermarket air conditioner. By distributing airflow evenly diffusers can help to keep the car’s cabin comfortable and can help to improve the car’s fuel economy.
What is a diffuser?
A diffuser is an automotive aerodynamic device whose purpose is to smooth the airflow under the car and decrease aerodynamic drag.
How does a diffuser work?
A diffuser works by decreasing the air pressure under the car which in turn decreases the aerodynamic drag.
What are the benefits of a diffuser?
The benefits of a diffuser include reducing aerodynamic drag improving fuel efficiency and improving handling.
How is a diffuser different from a spoiler?
A diffuser is designed to smooth the airflow under the car while a spoiler is designed to disrupt the airflow over the car.
How do I know if my car has a diffuser?
You can typically tell if your car has a diffuser by looking for a rear bumper with a lip that protrudes downwards.
Do all cars have diffusers?
No not all cars have diffusers.
Diffusers are more commonly found on sports cars and racing cars.
Can I add a diffuser to my car?
Yes you can add a diffuser to your car.
There are aftermarket diffusers available for purchase.
Will a diffuser improve my car’s performance?
Yes a diffuser can improve your car’s performance by reducing aerodynamic drag and improving fuel efficiency.
How do I install a diffuser?
Installing a diffuser is typically a fairly simple process.
Diffusers typically bolt on to the existing bumper using provided hardware.
What are the downsides of a diffuser?
The downsides of a diffuser include the potential for decreased ground clearance and increased noise.
Will a diffuser decrease my car’s ground clearance?
Possible but not necessarily.
Some diffusers are designed to not decrease ground clearance.
Will a diffuser make my car louder?
Possible but not necessarily.
Some diffusers are designed to not increase noise.
Do diffusers require maintenance?
No diffusers typically do not require maintenance.
How long do diffusers last?
Diffusers typically last the life of the car.
Are diffusers covered by warranties?
Most diffusers are not covered by warranties.