Fitment Information Subaru STi L4-2.5L Non-Turbo (2002, 2003, 2004, 2005, 2006, 2007) Subaru WRX L4-2.0L Non-Turbo (2002, 2003, 2004, 2005, 2006, 2007) Excludes Wagon models Attributes GTIN: 00843115005023/ 00843115005016/ 00843115005030 Brand Name: Injen Black Hydroshield (Optional): 1033BLK Compatible Throttle Controller: PT0002B Filter Color: Blue Filter Media: SuperNano-Web Dry Grade Type: Performance Heat Shield Included: No HP Gain: 24 Intake Color: Polished/ Black/ Red  Mounting Hardware Included: Yes Red Hydroshield (Optional): 1033RED Replacement Filter Part Number: X-1013-BB TQ Gain: 24 Tube Material: T6-6061 Mandrel-bent aluminum intake tubing Universal or Specific Fit: Specific Specs & Features Replacement air filter part number X-1013-BB Optional hydroshield part number 1033BLK or 1033RED Available with a polished or Black powder coated finish Aggressive engine tone under full throttle Smooth mandrel-bent intake piping eliminates restrictions and improves airflow Made in Pomona, California USA Injen Technology Limited Lifetime Warranty Excludes Wagon models Available in our Polished (P) Black (BLK) and Wrinkle Red (WR) finishes. Dyno Proven gains of up to 24 hp and 24 lb-ft. of torque Provides power gains while maintaining A/F ratios with no additional tuning 6061-T6 Mandrel-bent aluminum intake tubing Fully serviceable Injen SuperNano-Web dry air filter CARB EO #: D-476-5 Product Description The Injen Cold Air Intake is one of the world's first tuned cold air intakes.  The reason this intake is tuned, is because Injen takes the time to ensure that the design of the piping, the size of the piping and even the material keeps your factory air fuel ratio at optimal ranges and never lets your car or truck run lean.  As one of the best built and most innovative cold air intake systems on the market, the Injen is designed to be a good fit and not put stress on the couplings, flanges or brackets that the system comes with.  Redline360 is an authorized dealer and buying from us ensures that Injen will validate your warranty in the event of any support issues arise. Don't settle for a less expensive cold air intake that's basically a pipe and cheap filter with no research or design that could actually hurt power production.  Each Injen cold air intake from Redline360 comes with all necessary hardware and installation pieces necessary for a complete install.