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K&N Filters

The Original High Flow Air Filter

Choose from our entire selection of K&N Filters. We offer air filters, cold air intake kits and their associated accessories for the Dodge Cummins, Ford Powerstroke and Chevy Duramax diesel trucks. If you are in the market for an affordable cold air intake kit or replacement filter then our lineup of K&N Filters is the best place to buy.

K&N was the first major aftermarket air filter company to take on the industry. With years of experience and vast arrays of air filter products, they are the leader in their industry. Based on their 40 years experienced, they developed a 6-layer cotton gauze sandwiched between two epoxy coated metal screen air filters specifically for diesel engine application use.

Understanding the Different Series K&N Air Filters

K&N categorizes their diesel intake kits into four main categories, 57 Series, 63 Series 77 Series and the 71 Series. All intake kits have their unique characteristics and offer something a little different than the others. The 57 Series is 99.9% CARB Legal and offers an EO Sticker with their kits whereas the 63 Series most likely is not 50 State emissions compliant. The 71 Series is a new intake kit offered for the Ford Powerstroke diesel engine. It is both compliant and non-compliant, depending on the model year of the truck. The 77 Series is an intake kit that is mostly geared towards the medium duty trucks with the GM Duramax power plant.

Depending on where you live (emission compliant or non-compliant), K&N Filters offers a product that will enhance the runability of your diesel engine. They do not manufacture anything that does not increase horsepower and torque. If it does not show up on the dyno as an increase over stock, they simply will not make it.