Altima 02-05 4 Cyl. 2.5L Cold Air Intake Injen RD1975P Filter is strategically placed to draw in cool, dense air for maximum horsepower and torque gains Brackets and flanges are TIG welded for extra strength and durability High performance filters provide better airflow while maintaining a high filtration rate Complete hardware included for an easy install with simple hand tools Backed by Injen Technologys limited lifetime warranty