Fitment Information
- Subaru WRX GD Sedan / GG Wagon AT / MT (2002, 2003, 2004, 2005, 2006, 2007)
- Fits Both Manual and Automatic Transmission
- Subaru WRX STI GD (2004, 2005, 2006, 2007)
- Fits Manual Transmission Only
- This Air Intake is compatible with USDM vehicles only
Emissions Compliance
- 50 State Legal - This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number: D-660 / D-660-102
Specs & Features
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Composite Heat Rejection: Constructed from a one-piece, high-temp plastic composite. It saves weight and doesn't absorb heat like metal, keeping the air charge cooler.
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Integrated Airflow Management: Uses a built-in velocity stack and straightener grid to smooth out turbulence. This keeps the MAF sensor reading accurately for consistent power and drivability.
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Hear the Turbo: By removing the muffled stock airbox, the engine's "snarl" comes to life. You will clearly hear the turbo spooling up and the bypass valve venting between shifts.
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Reusable Custom Filter: Comes pre-oiled and ready to install. It’s fully washable so you don't need to buy replacements—just remember to go light on the oil after cleaning to keep your MAF sensor clean and happy.
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Simple Bolt-On: Designed to fit without the headache. No cutting, trimming, or permanent mods required. You can swap the stock box for this unit in minutes using simple hand tools.
- Tuning Flexibility: Engineered to work safely on the factory tune, but also fully supported by COBB Off-The-Shelf (OTS) maps if you are using an Accessport.
Product Description
The COBB SF Intake fixes the biggest issue with the stock intake: the pre-turbo restriction. But we didn't just stick a cone filter on a metal pipe and call it a day. Metal tubes heat-soak quickly, which defeats the purpose of a "cold air" intake.
That’s why this intake is molded from a high-temperature composite. It resists engine bay heat much better than aluminum, keeping your intake temperatures down. Inside, it features a CFD-designed velocity stack leading into a specialized airflow straightener grid. This grid smooths out the air right before it hits the MAF sensor, ensuring the ECU gets clean, precise readings—preventing the idle issues and check engine lights common with cheaper intakes.
Complete the Upgrade: Unlock the Real Power
While this intake is safe to run on your factory tune, you are leaving performance on the table without an Accessport.
To get the most out of that improved airflow, pair this intake with a COBB Accessport. It comes pre-loaded with specific "Stage 1+" maps calibrated for this exact SF Intake. This combination optimizes your timing and fueling to match the extra air, giving you better throttle response and significantly more torque. It’s the difference between just making more noise and actually making more power.

More in this category
COBB Air Intake
Subaru WRX Air Intakes
Subaru WRX Parts
Subaru WRX STi Air Intake
Subaru WRX STi Parts
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