Fitment Information
- Subaru WRX GE Hatch (2008, 2009, 2010, 2011, 2012, 2013, 2014)
- Subaru WRX GH Sedan (2008, 2009, 2010, 2011, 2012, 2013, 2014)
- Subaru Impreza 2.5 GT GE Hatch / GH Sedan (2009, 2010)
- Subaru WRX STI GE Hatch (2008, 2009, 2010, 2011, 2012, 2013, 2014)
- Subaru WRX STI GH Sedan (2011, 2012, 2013, 2014)
- Subaru WRX STI VA Sedan (2015, 2016, 2017, 2018, 2019, 2020, 2021)
- Subaru WRX STI Type RA VA Sedan (2018)
- Subaru WRX STI S209 VA Sedan (2019)
- 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-660-3 / D-660-4 / D-660-102
Specs & Features
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Composite Heat Rejection: Molded from a high-temp composite that resists heat soak far better than aluminum pipes, keeping your intake air charge consistent and cool.
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Smart Airflow Management: Features a custom CFD-designed velocity stack and an integrated airflow straightener grid to smooth out turbulence for precise MAF readings.
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Steel-Reinforced Durability: The Post-MAF silicone coupler is 4-ply and reinforced with steel wire, ensuring it won't collapse under high-vacuum or high-boost situations.
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Audible Performance: Removes the muffling of the stock airbox, amplifying the turbo spool, induction roar, and bypass valve venting sounds.
- Tuning Ready: Specifically engineered to work seamlessly with COBB Accessport Off-The-Shelf (OTS) maps for a true plug-and-play power upgrade.
Calibration Requirement
Critical Note: You cannot just bolt this onto an 08+ Subaru and drive away. The airflow dynamics change so drastically that the factory ECU calibration can't keep up, which can run the engine dangerously lean.
Tuning is mandatory. But don't worry—COBB makes this easy. COBB provide free Off-The-Shelf (OTS) Maps via the Accessport. Just install the intake, flash the specific "Stage 1+ SF" map, and you are safe, powerful, and ready to rip.
Product Description
The factory intake is designed to be quiet, not fast. The COBB SF Intake fixes that by replacing restrictive baffling with a high-flow system engineered specifically for the picky Subaru MAF sensor. Unlike cheap aluminum intakes that turn into heat sinks in your engine bay, our custom composite body resists heat transfer, keeping your air charge cool and dense even in traffic.
Inside, we use a CFD-designed velocity stack and a unique airflow straightener grid to comb the air smooth before it hits the sensor. This ensures your ECU gets precise data, giving you the flow of a race intake with the smooth idle and driveability of a stock car. Plus, the included steel-reinforced silicone coupler ensures the intake won't collapse under the stress of high boost.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.More in this category
COBB Air Intake
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