ProGuard7 is 5-layers of progressively finer oiled cotton gauze used in the Pro5R media backed by another 2-layers of finer porosity synthetic non-woven media which offers maximum protection. This media is ideal for those who do a lot of unpaved, off-road driving in severe dusty and dirty environments where protection is more important than maximum horsepower. This media is most popular with compression-ignition diesel truck owners.
aFE's Pro Guard 7 Type Si air intake system for your 2011-2016 Ford 6.7L Powerstroke produces 21 HP, 55 lbs-ft. torque and outflows the factory intake by 38%. Fully enclosed in a heat-shielding molded plastic housing and features a washable/reusable conical air filter.