Leveraging nearly 30 years of airflow engineering experience, CORSA(R) Air Intakes are the perfect compliment to a CORSA Performance(R) exhaust system. Each CORSA(R) air intake has been custom designed by CORSA's engineers to optimize performance by increasing airflow. Paired with CORSA's MaxFlow 5(TM), 5 layer oiled cotton gauze air filter, CORSA(R) air intakes outflow stock air intakes increasing engine efficiency and increasing performance. Every MaxFlow 5(TM), 5 layer oiled cotton gauze air filter features high quality textiles, pleated between a top and bottom aluminum screen designed to filter out damaging particulates while protecting your engine. MaxFlow 5(TM) reusable oiled filters offer extended maintenance intervals (up to 40K miles depending on driving conditions). Whether On-Road or Off, CORSA Performance(R) has you covered. CORSA MaxFlow? 5 Closed Box Air Intake Not currently Legal for sale on emission controlled vehicles in the state of California