Description

The K&N Filters Universal Air Filter – 3-1/2″ 10° FLG x 5-3/4″ B x 3-3/4″ T x 6″ H (KNNRF-1031) is engineered to improve airflow and filtration across a wide range of vehicles and custom applications. Featuring a 3.5-inch flange with a 10-degree angle, this tapered universal air filter delivers both versatility and durability. Its reusable and washable cotton gauze design helps boost engine performance by maintaining consistent air intake efficiency. Designed for universal fitments with space or angle restrictions, this filter supports modifications and upgrades without compromising performance. Built with a rubber flange and a tapered oval design, it ensures a snug fit and superior sealing.

Features and Specifications:

Flange Diameter: 3.5 inches
Flange Angle: 10-degree
Base Diameter: 5.75 inches
Top Diameter: 3.75 inches
Height: 6 inches
Engineered Power: Advanced air filter media enhances horsepower, acceleration, and overall engine performance.
Superior Protection: Four layers of premium cotton gauze with a specialized tacking agent trap harmful contaminants effectively.
Durable Construction: Built with high-quality materials and precision manufacturing for long-lasting performance.
Long Service Life: Under normal highway conditions, it requires cleaning only every 75,000 miles, equivalent to about five years.
Easy Installation: Pre-oiled and ready to use, making it a simple and cost-effective upgrade for better performance.
Versatile Fitment: Designed for compatibility with a wide range of applications.
Eco-Friendly: Reusable design helps reduce landfill waste from disposable filters.
Reliable Warranty: Backed by a 1-year limited warranty for peace of mind.