K&N RU-3570 High-Flow Original Universal Air Filter – 3 Inch Flange Reusable Washable Performance Engine Intake Filter – Up to 99% Filtration

Product Description :

K&N RU-3570 High-Flow Original Universal Air Filter

Maximize your engine's performance with the K&N RU-3570 High-Flow Universal Air Filter, engineered to deliver increased horsepower, faster acceleration, and superior engine protection. Designed with K&N's premium multi-layer oiled cotton gauze media, this reusable air filter provides exceptional airflow while capturing harmful contaminants with up to 99% filtration efficiency.

Unlike disposable paper filters, the K&N RU-3570 is washable and reusable, helping reduce maintenance costs while minimizing environmental waste. Under normal highway driving conditions, it only requires cleaning every 75,000 miles, making it one of the most durable and economical performance air filters available.

Featuring a 3-inch (76 mm) centered flange, tapered round design, premium rubber construction, and a large 6-inch base diameter, the RU-3570 is ideal for custom air intake systems, cold air intakes, racing vehicles, off-road applications, trucks, SUVs, and performance cars.

Pre-oiled and ready to install, the K&N RU-3570 offers an easy upgrade that enhances airflow, improves throttle response, and supports long-term engine performance.

Key Features :

• Genuine K&N RU-3570 High-Flow Universal Air Filter

• Increases horsepower and engine acceleration

• Improves throttle response and airflow

• Premium 4-layer oiled cotton gauze filtration media

• Up to 99% filtration efficiency

• Washable and reusable lifetime air filter

• Requires cleaning only every 75,000 miles under normal driving conditions

• Durable rubber flange construction

• Pre-oiled for quick and easy installation

• Fits custom intake systems with a 3-inch flange

• Helps reduce disposable filter waste

• Ideal for cars, trucks, SUVs, racing, and off-road vehicles