Compatible: (2.5L)

2006 – 2007 Subaru Impreza WRX

2004 – 2007 Subaru Impreza WRX STI

Is your engine choking for air and in need of some additional horsepower? If so, Injen has exciting news for you! The SP series of cold air intakes from Injen Technology will allow your engine to breathe deeper and enhance the performance that youve been craving. The SP series of cold air intakes is Injens flagship system in their lines of traditional aluminum cold air intake systems. Injen Technology is the worlds first tuned air intake system and holds four (4) patents on the tuning process of an intake system, something no other manufacturer can claim. The SP series of cold air intakes feature many of Injen Technologys patented tuning process, including MegaRam (MR) Technology (Patents 7,359,795 and 7,669,571), Air Fusion (Patent 7,721,669), and many other innovations that keep Injen Technology at the forefront in the performance aftermarket.

The soul of this intake is found within 6061-T6 aluminum air intake tube that provides a smooth uninterrupted path for highly efficient airflow. Our engineers have painstakingly designed the intake to provide the highest levels of safe power, along with clean aesthetics that will impress every time you open your hood. In addition to the impressive power increase, the Injen team has ensured that a safe Air fuel (A/F) ratio has been maintained throughout the power band.

Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and unbeatable filtration. If that’s not enough, the Injen SP performance intake provides power you can hear and feel! This intake provides an aggressive and throaty tone that is unmatched in the aftermarket. Want to add that personalized touch to your intake? Youre in luck, as Injen also offers this intake system in multiple finishes. To top it all off, this SP CAI kit includes the unbeatable Injen Technology limited Lifetime Warranty!

• Direct fit for
  2004-2007 Subaru Impreza WRX STI H4-2.5L Turbo
  2006-2007 Impreza WRX H4-2.5L Turbo
• Dyno Proven gains of up to 26 hp and 23 lb-ft. of torque
• Cold Air Intake Design
• Features Injens patented MegaRam (MR) Technology
• Provides power gains while maintaining A/F ratios
• No additional tuning required
• 6061-T6 aluminum intake tubing
• Fully serviceable Injen SuperNano-Web dry air filter
• Replacement air filter part number X-1013-BB
• Optional hydroshield part number 1033BLK or 1033RED
• Available in multiple finishes
• Aggressive engine tone under full throttle
• Smooth intake piping eliminates restrictions and improves airflow
• Made in Pomona California, USA
• Injen Technology Limited Lifetime Warranty
• CARB EO #: D-476-5

Install Guide:

Warranty: