K&N 63-3081 Performance Intake Kit Guaranteed horsepower gain Designed to improve throttle response and engine sound Free-flowing polyethylene intake tube 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 polyethylene intake tube Replaces entire factory air intake system