K & N Air Filter - Yamaha YA-6504 Standard Body Replacement Plastic Kit PISTON SIZE：4Piston Φ34/Φ30 (Aluminum with

PISTON SIZE：4Piston Φ34/Φ30 (Aluminum with Kashima coating)

style and price Class-leading power Expanded end and rolled tips Same construction and sound as the Cobra short RPT systems Available in chrome Made in the U

Stock Can + Cat System Weight = 14

works with stock or heavy-duty diaphragm spring

increase horsepower throughout and improve fuel efficiency

K & N Air Filter - Yamaha YA-6504 Standard Body Replacement Plastic Kit PISTON SIZE：4Piston Φ34/Φ30 (Aluminum withFits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit Fuel management modifications are not required for increased performance Pleated media provides a large filtration area offering long service intervals Designed to provide increased performance Made in the U. S. A.