ULTIMATE LONGEVITY: No-Hassle Lifetime Limited Warranty. INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than factory air filter INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than factory air filter IMPROVED ENGINE SOUND: Hear the power under the hood. WORLD CLASS PROTECTION: Setting new strandards by protecting your engine against harmful contaminants for increased performance