KN Cold Air Intake Kit Guaranteed to Increase Horsepower Fits 20082017 HARLEY DAVIDSON Softail Heritage Fat Boy Breakout Police Ultra Street Glide other select models571122

ULTIMATE LONGEVITY 10YearMillion Mile Limited Warranty protects for the life of your vehicle GUARANTEED INCREASE IN HORSEPOWER Dynotested with up to 50 more airflow than restrictive factory box air filter and intake tube BETTER TOWING Improves acceleration and uphill performance when towing by improving throttle response IMPROVED ENGINE SOUND Hear the power under the hood WORLD CLASS PROTECTION Pushing the limits of engine protection by protecting your engine from harmful contaminants EASY MAINTENANCE No filter cleaning required for up to 100000 miles EASY TO INSTALL Bolton power in less than an hour with basic hand tools KN air intake systems are one of the easiest ways to guarantee an increase in horsepower DYNO TESTED Dynotested for a guaranteed increase in horsepower and acceleration with no ECU tune required HIGH QUALITY Made in America