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This K & N Air Filter for 2007-2008 Nissan Altima Hybrid increase air flow which translates into better fuel economy and perfomace. This is the same filter used in the Indy race Series. The K&N FilterCharger® air filter is designed to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life.  Our automotive OE (original equipment) replacement air filters generally add 1-4 horsepower.
Air Filter; Panel; H-1 1/8 in.; L-12.25 in.; W-5.25 in.;