K&N Universal Chrome Filter 1.75in Flange ID / 4in Length x 2.875in Width Base / 2.75in Height

Starting with a 1.75-inch flange inner diameter, this K&N universal air filter is built for applications where a direct fit into the stock airbox isn't the goal, but rather improved airflow and filtration for off-road use. It's designed to clamp onto a variety of intake setups, making it a popular choice for custom builds or replacing worn-out filters on many Kawasaki and Suzuki motorcycles from the late 70s and early 80s, like the KZ1000 and GS1000 series.

The filter media itself is made from multiple layers of woven cotton gauze. This construction offers a large filtration area, which means less restriction for the incoming air. This design helps provide clean carburetion, even at higher altitudes, and generally doesn't require rejetting the carburetor to see performance gains. Because it's washable and reusable, you can clean and re-oil it for long service intervals, making it a solid option for extended use in dusty conditions.

This filter is pre-oiled and ready to install, and it comes with a one-year limited warranty from K&N Engineering. It's a well-built component that aims to improve horsepower and acceleration for off-road riding, ATVs, and side-by-sides.