K&N Performance Air Intake System (57-0548)

K&N Performance Air Intake System (57-0548)K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open air air filters provides even more airflow at lower

and Toro models

3-1/4 inch inside diameter

K&N high-flow intake systems give your Harley an aggressive appearance and killer style

For K&N filter YA-4518XD only

These intakes come with a billet aluminum throttle-body mounting plate and mounting hardware

Simply use K&N oil and cleaner to service your filter

Perfco Performance Air Filters were born from the belief that if you want something done properly

Free-flowing High-Density Polyethylene intake tube

open cell foam

Connects a 3 inch to a 2-3/4 inch tube

This coupler adapts a 3-1/4 inch to a 2-1/2 inch tube and is 2 inches in length

The A-N Series foam air filters utilise an aluminium spun twin tangental base and twin layer foam with internal 304 stainless steel cage for maximum strength