The PERRIN Performance cold air intake system provides maximum horsepower and torque gains that looks like nothing you have seen before. The PERRIN Performance cold air intake system is designed for power. Manufacturing one of the only properly positioned and sized MAF sensor adaptors for the Subaru Line-up, Perrin intakes are able to achieve higher horsepower numbers thenour competitors. PERRIN intake systems use colorful silicone tubing to dress up the engine bay and fight heat soak. Flexible silicone tubes make installation easy and prevent wear damage at contact points. Kit includes two silicone intake tubes, PERRIN foam air filter, MAF sensor housing, mounting hardware.