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Why Buy at VR

Dionisio says:The best part of the product was that they made the engine bay look amazing... I wish they said or had the logo facing in such a way that you could have seen it... Oh well... I have the f hose too... ..
4 of 5 Stars!

Jiwung Yun says:I have purchased agency power shorty antenna in black. so far my radio reception is as good as when I had my OEM antenna and looks so much cleaner with this antenna. Tha-nks you ..
5 of 5 Stars!

Victor Wisniewski says:I bought this for my 2006 Nissan Sentra Spec V. I already knew that the screw thread that was provided was too short to screw it in all the way but, no worries I just found a longer one at home and st ..
4 of 5 Stars!

STPR Corp says:This product is a must, I have installed some on Evos 8, 9, 10's, and in some S2000's. Bum-p for this Item!!! Sinc-erely, Aelja-ndro Santiago STPR Corp. ..
5 of 5 Stars!


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  HomeDiffusers

Replacement Diffusers

Vivid Racing carries high quality replacement diffusers to fit your car or truck at great prices. Diffusers are available in different materials such as carbon fiber, urethane or fiberglass. Brands include Agency Power, 3D Design, APR Performance, Akrapovic, Vertex, C-West, Fairy Design, and many more!


In automotive terms, a diffuser is a shaped section of the car’s underbody, which improves the vehicle’s aerodynamic properties. This happens by enhancing the transition between the high-velocity airflow underneath the car and the freestream airflow of the ambient atmosphere. In simpler terms, the purpose of a rear diffuser is to reduce air turbulence as your car drives at high speeds.

By decreasing drag, rear diffusers make your car more stable at high speeds and reduce the amount of wind resistance it must overcome. Less wind resistance means that your vehicle will be able to utilize its existing horsepower and torque more efficiently. A rear diffuser also adds style to your car and helps it stand out from the crowd. If you have a rear wing on your car, it also affects the diffuser. When the rear wing is mounted low and close to the diffuser, the low pressure under the wing helps suck air through the diffuser.

As the front of a vehicle slows down the air without a diffuser, this is the ideal place to install an inlet. A splitter is commonly used and serves to increase the amount of downforce (lift inverted) at the front of the car. The airstream is brought to stagnation above the splitter by an air dam, which results in an area of high pressure. Below the splitter, the air is redirected away from the stagnation zone and accelerated, causing the pressure to drop. The decrease in pressure in combination with the high pressure over the splitter area creates downforce. Consequently, the larger the area of the splitter, the more downforce is generated.

Buy online or call us today to place your order! If you don't see what you're looking for, please contact us at 1-480-966-3040. We can help you find the right product for your vehicle to fit both your taste and your needs. 



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