K&N 33-2476 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2011-2020 for Chevrolet/Holden (Onix, Prisma, Sonic, Aveo, Barina, Barina RS) 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 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. Race Tested: The Official Air Filter of Nascar. Trusted on the racetrack made for your vehicle.