"K&N engine air filter, washable and reusable: 2002-2009 Chevy/GMC/Saab/Buick/Izuzu/Oldsmobile (TrailBlazer, Envoy, Envoy Denali, 9-7x, Rainier, Ascender, Bravada) E-1009"

K&N engine air filter, washable and reusable: 2002-2009 Chevy/GMC/Saab/Buick/Izuzu/Oldsmobile (TrailBlazer, Envoy, Envoy Denali, 9-7x, Rainier, Ascender, Bravada) E-1009 Engineered Power: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%. Easy Installation: Pre-oiled and ready to drop into your factory air box. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains. Saves Money: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters. Eco-Friendly: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters. World Class Protection: Pushing the limits of engine protection by protecting your engine from harmful contaminants. Low-Maintenance Design: 50,000 miles before your first cleaning under normal highway driving conditions. High Quality Race Tested: The Official Air Filter of NASCAR. Trusted on the racetrack—made for your vehicle.