" K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 1977-2013 ISUZU/HOLDEN/FORD/VAUXHALL (Alterra, Colorado, Rodeo, Scorpio, Granada, Sierra, P100, Frontera), 33-2013 Ultimate Longevity: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle. 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-treated 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. "