K&N is the inventor of the Air Intake System and has over 50 years of experience in the performance filtration industry. Proudly designed and manufactured in the USA, this premium cold air intake system is specifically designed for your C1500, C2500, C35, C3500, K1500, K2500, K3500, Suburban 1500, Tahoe, Yukon, and is dyno tested to provide a guaranteed increase in horsepower. It features a high flow intake tube, custom heat shield, and oversized K&N Washable High-Flow Cotton Air Filter for ultimate airflow. This Intake system replaces the restrictive OEM air box to provide an improved driving experience for daily driving or towing. It installs easily in about 60 minutes and is backed by a No-Hassle Lifetime Limited Warranty and will not void your factory warranty. Some intakes are not legal for sale or use on any pollution-controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle.