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Cobb's SF Intake system utilizes several unique features in an effort to maintain optimal flow for performance while minimizing turbulence that can cause engine management problems. From a custom conical cloth air-filter element, Cobb chose a CFD-designed velocity stack leading to an unique air flow straightener grid. This straightener grid is specifically designed to smooth the incoming air flow as it passes the Mass Air Flow sensor for precise readings. This eliminates the "dead spots" experienced by other aftermarket intakes due to turbulence. NO other aftermarket Subaru intake system utilizes these critical design elements.
In order to provide a system that looks as good on the outside as the technical advancements happening on the inside, Cobb utilizes a one piece design constructed from a high temperature plastic composite. Not only does this save weight compared to the previous metal design, the plastic composite material offers much better heat rejection properties that help keep intake air temperatures cooler. In contrast, intake systems constructed using metal castings or piping can actually retain underhood heat and in turn heat the incoming air.
The SF Intake System is available with a Black OEM-like finish. A powdercoated black support bracket is included for secure installation. The system is finished out with a custom designed COBB Blue cloth conical filter which has been pre-oiled. Cobbs filter is serviceable (like a K&N) with an available cleaning/oiling kit and does not need to be replaced for the entire lifespan of your vehicle.
2002-2007 Subaru Impreza WRX
2004-2007 Subaru Impreza WRX STi
2004-2008 Subaru Forester XT
Some vehicles require custom tuning to be able to correctly account for the new air intake. Consult your local dyno tuner for more information.
Cobb Part # -- 712100
Cobb SF Intake
Filter Cleaning Kit for SF Intake
Replacement Filter for SF Intake