K&N RG-1001RD 4" Universal Clamp-On Air Filter – High Flow, Oiled Cotton, Red

Looking to add some performance and a little color to your engine bay?

This K&N RG-1001RD is a 4-inch diameter, clamp-on air filter.

It's made from K&N's famous oiled cotton gauze, which flows more air than disposable paper filters and can be cleaned and reused.

The red color stands out, and it's got that classic K&N look.

Dimensions: 4 inches in diameter, 5.5 inches long, and about 6 inches wide.

It clamps directly onto your intake tube or throttle body.

Universal fit, so it works on cars, trucks, motorcycles, or any application with a 4-inch inlet.

If you're building a custom intake or just want better flow, this is the real deal from K&N.