DC Sports Short Ram Air Intake 2010-2013 Mazda 3 (2.5L)DC Sports Air Intake Systems provide the best of both worlds in heat protection and improved breathability. Every kit includes an air filter that requires no oil, therefore no chance in contaminating the air mass air flow sensor which can result in loss of power and higher fuel consumption for your 2010 13 Mazda 3 (2. 5L). No oil Necessary for filtration Washable and reusable Filtration as small as one micron Built in velocity stack and funnel top