Description
The K&N Filters 63-3121 Air Intake System is designed to optimize airflow to your engine, featuring a high-density polyethylene (HDPE) rotationally-molded tube. This system not only increases the volume of airflow but also provides a guaranteed increase in horsepower and torque, making it a standout choice for those looking to enhance engine performance.
This air intake system is paired with a washable, reusable High-Flow Air Filter that utilizes oiled cotton filter media. Its oversized, conical design allows for extended service intervals, enabling you to go up to 100,000 miles between filter services under normal highway driving conditions. Additionally, the custom heat shield protects intake air from the high temperatures of the engine bay, ensuring optimal performance. The entire installation process is straightforward and can typically be completed in less than 60 minutes.
Features
- High-density polyethylene (HDPE) rotationally-molded tube
- Guaranteed increase in horsepower and torque
- Washable, reusable High-Flow Air Filter with oiled cotton filter media
- Oversized, conical air filter design allows for up to 100,000 miles between services
- Custom heat shield protects intake air from engine bay heat
- Typical installation time of less than 60 minutes
Frequently Asked Questions
What type of material is used in the intake tube?
The intake tube is made from high-density polyethylene (HDPE).
How often do I need to service the air filter?
The air filter can be serviced up to 100,000 miles under normal highway driving conditions.
Is the air filter washable?
Yes, the air filter is washable and reusable.
How long does installation take?
The installation process typically takes less than 60 minutes.
Does the system include a heat shield?
Yes, a custom heat shield is included to protect intake air from high temperatures.
Manuals & Instructions
âš WARNING (California Proposition 65): WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov

Not CARB approved. This item is not legal for sale or use on pollution-controlled motor vehicles in California or states that adopt California emissions standards. Intended for off-road / competition use where permitted by law.















