K&N 63-1700 Performance Intake Kit Guaranteed horsepower gain Designed to improve throttle response and engine sound Free-flowing high density polyethylene tube. Lasts up to 100,000 miles before service is required (depending on driving conditions) Replaces entire factory air intake system Not legal for highway use in states adopting California emission regulations This item is not for sale in the state of California/Non-CARB compliant Guaranteed horsepower gain Designed to improve throttle response and engine sound Free-flowing high density polyethylene tube Replaces entire factory air intake system