K&N YA-4514XD Replacement Air Filter for some Yamaha YZ250/450 Models 14-19

K&N XStream Motocross Air Filter

K&N air filters were originally designed for the extreme demands of off road racing. After over 40 years of development and testing, the original design still offers increased performance and excellent protection in all conditions.

The K&N XStream series high flow air filters are designed to provide high-capacity with very low restriction, resulting in increased horsepower and torque. K&N XStream series performance Motocross filters are constructed with deep pleated, washable and reusable cotton media that offers a large surface area and longer service intervals.

Features:

• Designed to provide increased horsepower and acceleration
• Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals
• Multiple layers of woven cotton gauze media offers excellent filtration
• Specifically developed for Off-Road and Motocross applications
• Fits directly into OEM air box with application specific sealing bead ensuring a precise fit
• No fuel management modifications are required to obtain increased performance
• Washable & reusable
• Includes 1 oz. tube of sealing grease