Injen injSP1976P

The Injen polished cold-air intake for 2004–2006 Nissan Altima 2.5L (automatic only) replaces restrictive factory plumbing with 6061-T6 aluminum tubing and a SuperNano-Web dry filter to improve airflow. Supplied with hardware and a vehicle-specific heat shield, the SP system is tuned with Injen’s MR and Air Fusion technologies and reports dyno-proven gains in the neighborhood of twelve horsepower while maintaining safe A/F ratios and carrying the manufacturer’s limited lifetime warranty.