Compatible Model and Year List (please verify using Amazon?s ?My Garage?)Altima Only Fits 2.5L 4-Cylinder (2013-18), does not fit 2013 Altima 2 Dr CoupeAbout SpearheadWe are a family-owned operation leveraging 30 years of automotive parts sourcing for some of the largest automotive aftermarket suppliers in the United States to build a brand customers can trust to find the best products at the best prices.Cross Reference Part No.?sSpearhead: MT-450Fram: CA11450Did you know this about engine air filters?An engine air filter will pay for itself with the money you save at the gas pump?a new engine air filter can increase your vehicle?s MPG by up to 10%.There?s no better or cheaper investment you can make to extend the life of your vehicle than regularly replacing your engine air filter every 10-12K miles.When is the ?right? time to replace my engine air filter?Warning/Engine Light Turns On: A light will appear on vehicles equipped with airflow sensors.Noticeably Slower Acceleration: If your vehicle is slow to accelerate or responds poorly to pedal control this can mean your engine isn't receiving enough air to perform normally.Reduced Fuel Economy: The less oxygen an engine consumes, the more fuel it will burn - causing fuel economy to go down.12K Miles or 1 Year: If you don?t remember the last time you replaced your engine air filter it?s time to change it out!Questions or Concerns?If you have any questions/concerns, message us using Amazon?s ?contact seller? form.