The AIRAID AIR-401-121 Performance Air Intake System is designed to optimize your engine's performance by providing a larger volume of cooler air. This innovative intake system enhances horsepower and torque, making your driving experience more exhilarating. The system maintains the original air filter location while incorporating a large open-element air inlet, safeguarded by Cold Air Dam panels. These panels ensure a consistent flow of cooler air into your engine, effectively isolating the filter from the heat of the engine compartment.
This air intake system is engineered for easy installation using common hand tools, making it accessible for both seasoned enthusiasts and newcomers alike. The washable and reusable AIRAID premium air filter is less restrictive compared to traditional paper filters, ensuring superior filtration and longevity. Plus, the system is street legal in all US states, giving you peace of mind while you enjoy the enhanced performance.
Replacement Filter: 721-440
California Air Resources Board Exempt: Yes; CARB EO: D-609-18
Users have praised the AIRAID AIR-401-121 for its noticeable boost in engine responsiveness and improved throttle response. Many have noted that the installation process was straightforward, and the quality of materials used in the construction of the system is top-notch. The washable filter has also received positive feedback for its ease of maintenance, allowing drivers to keep their system performing at its best without frequent replacements.
Prop 65 Warning: WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Note(s):
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2001-2003 Ford Explorer |
Explorer | 2001-2003 |
|
2001-2003 Ford Ranger |
Ranger | 2001-2003 |

Airaid is an aftermarket company that manufactures air filters and air intake systems for various vehicles. Founded in 1997, their filters are designed to work in any kind of environment, may it be the sand dunes, mud bogs, snowy slopes, and other harsh terrains.
Their filters are not just used for offroading purposes but at the race track as well. You can see it being used by various drag cars and track cars too. Over the years, Airaid has established itself as a company that provides top quality products and has since become a leader in its market segment.
Engines Need to Breathe TooLike humans, your car engine needs to properly breathe as well. Imagine running with your nose clogged. Hard isn’t it? That goes the same for your engine.
A clogged air intake system would not just hinder the engine but might cause some unnecessary damage as well. Airaid aims to provide a better solution to these by creating products that would help restrict airflow.
Continuous Research for InnovationAiraid has always pushed itself to find better ways on how to improve an engine’s airflow. They have created products such as throttle body spacers that complements their high-performance air intake systems.
Their own air filters dubbed Synthaflow and Synthamax are proven to be more efficient against its competitors. The company is committed to providing the best product that they have created a special team known as the H-PAS Development Team. This team focuses on High-Performance Air Systems.
Purchase Airaid at Vivid RacingDon’t restrict your vehicle’s full potential and upgrade your vehicle’s air intake system with Airaid. Designed to perform, you know that you have a product that helps your vehicle’s performance. Visit Vivid Racing and check out the list suitable for your needs.
Click to view the Installation Instructions here