K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: GRAVELY/KOHLER (CH11, CH12.5, CH13, CH14, CH15, KT17, Square Style, KT19, KT21, M16, M18-M20), E-4522

K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: GRAVELY/KOHLER (CH11, CH12.5, CH13, CH14, CH15, KT17, Square Style, KT19, KT21, M16, M18-M20), E-4522

• 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.