AFE Stage 2 SI Cold Air Intake Install Video: 2008 Ford 6.4L Powerstroke

Parley’s Diesel Performance carries all the top brands of diesel intakes and diesel cold air filters like those from Advanced Flow Engineering, or AFE as they are commonly called.  Over the past few years AFE diesel intakes have become recognized as some of the best cold air intakes available.   Many AFE cold air intakes have an open or exposed filter element, but for certain vehicle applications AFE has designed an intake system with a fully enclosed filter.  A good example would be the sealed Ford diesel cold air intake for the 6.4L Powerstroke trucks built from 2008 through 2010.

AFE’s Stage 2 Si ( sealed intake) for the 6.4L Powerstroke shows signficant improvements in airflow and real power increases.  Dyno testing of the AFE Stage 2 Intake shows gains of 28 Horsepower and 54 ft. lbs. of Torque at 2000 RPM.  That’s a pretty significant increase in power to a truck that already makes big numbers from just adding a cold air intake system.  The increase in airflow is also improved by 41% over the stock airbox, pushing an additional 65 CFM (stock is about 160 CFM).

The AFE Stage 2 Si intakes also help maintain a factory appearance by utilizing a fully sealed commercial grade air box that replaces the entire OEM air box.  Part of what makes this particular Stage 2 Si unit so effective is the use of a built in ram-air scoop which forces more cold air into the filter area.  And last but not least, like with all true diesel performance intakes, adding a large, conical filter with pleated ridges increases the surface area of the filter, allowing for more air to be filtered more quickly.

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