Mishimoto Air intake systems are a perfect addition to your vehicle. Each vehicle specific design is carefully engineered to be a direct replacment and proper fit for your vehicle, incorporating all sensors and hoses. A cleanable high flow air filter is included with every kit. Every Mishimoto Air Intake System is a complete kit, with no additional parts required and backed by the Mishimoto lifetime warranty. Gains of 25 hp / 25 lbs of tq while maintaining A/F ratios with no additional tuning. The part number for this item is MMAI-STI-08P and it fits 2008-2014 Subaru WRX / STI Models.