K&N Cold Air Intake Kit: High Performance, Guaranteed to Increase Horsepower: 50 State Legal: 2015 CHEVROLET/GMC (Silverado 2500 HD, Silverado 3500 Sierra HD)57 3087

ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle. GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested 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 100,000 miles EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower. DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required HIGH QUALITY: Made in America.