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The COBB Tuning SF Intake utilizes a custom design to maintain optimal flow and net the ideal performance while remaining unedited from the factory velocity stack. The custom conical cloth filter feeds filtered air directly to the engine, while maintaining optimal intake velocity and minimizing turbulence found with many aftermarket intake systems.
The Cobb 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 uses 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. Included with this Cobb SF Intake System is the Cobb Airbox, proven to decrease intake temperatures as shown below. Highway Driving: - COBB Intake no box: Max 124 degrees F, Avg. 91.6 degrees F - COBB Intake with box: Max 108 degrees F, Avg. 74.9 degrees F - Difference of: Max ~16 degrees F, Avg. ~16.7 degees F City Driving: - COBB Intake no box: Max 149 degrees F, Avg. 117.4 degrees F - COBB Intake with box: Max 111 degrees F, Avg. 87.5 degrees F - Difference of: Max ~38 degrees F, Avg. ~29.9 degrees F Idle (~5 mins): - COBB Intake no box: Max 149 degrees F, Avg. 133.5 degrees F - COBB Intake with box: Max 113 degrees F, Avg. 99.2 degrees F - Difference of: Max ~36 degrees F, Avg. ~34.3 degrees F
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