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K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3978XD

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Key item features

REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance

Specs

Manufacturer part number
E-3978XD
Brand
K&N
Engine air filter type
Paper
Vehicle fitment type
Specific
Features
Washable
Automotive parts division
Performance

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Product details

K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous No-Hassle Lifetime Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance

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