K&N E-0781 High Performance Replacement Air Filter

by K&N

Product Features

• Designed to increase horsepower and acceleration
• Washable and reusable - lasts up to 50,000 miles before cleaning is required depending on driving conditions
• Original lifetime high-flow performance cotton air filter
• Million-mile limited warranty on replacement air filters for street legal vehicles and 1-year limited warranty for all other air filters
• The world's best air filter

Product Details

View Installation Instructions [PDF]

• Product Dimensions: 12 x 7 x 12 inches ; 4 pounds
• Shipping Weight: 5.4 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B000NKAZUM
• Item model number: E-0781
• Average Customer Review: 3.0 out of 5 stars  See all reviews (4 customer reviews)
• Amazon Best Sellers Rank: #3,760 in Automotive (See Top 100 in Automotive)
  • #45 in Automotive > Performance Parts & Accessories > Filters > Air Filters & Accessories > Air Filters
  • #80 in Automotive > Replacement Parts > Filters > Air Filters & Accessories > Air Filters

Product Description

K&N's lifetime replacement air filters are Designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road.

Customer Reviews

Most Helpful Customer Reviews

5 of 5 people found the following review helpful:

2.0 out of 5 stars Some Good more bad, May 11, 2008

By 

Charles Scripps "ReverentWoodsman" (The woods) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: K&N E-0781 High Performance Replacement Air Filter (Misc.)

It was very frustrating getting it in - wouldn't fit. Yes it is the right one. It gets 2 stars for being sturdy - I know, because the frustration led to it getting drop kicked across the shop. Probably not returnable as a result. GM gets a poor review for dinking up the air intake. My '03 Duramax air filters just dropped in, no problem. K & N will probably call it precise engineering. I call it just making life more difficult than it needs to be. I will still use K & N in my other vehicles but if you have an '08 Duramax I don't recommend it. Any product requiring that much aggravation won't get many stars. Open note to K & N: You guys build great stuff, I regret to say this one isn't your best work.

2 of 2 people found the following review helpful:

4.0 out of 5 stars Typical K&N quality, August 8, 2008

By 

Ollie - See all my reviews

Amazon Verified Purchase

This review is from: K&N E-0781 High Performance Replacement Air Filter (Misc.)

I normally put K&N filters on all my new vehicles for long term savings, possible mileage increase and extended maintenance. This filter, for an '06 Chevy diesel p/u, is really heavy duty. It took some effort to install, needs a very firm push while turning clockwise into it's holding tab. No doubts about the seal. So far I have not noticed an increase in mileage, but that would require numerous trips with similar conditions to be accurate. With improved mileage I'd rate it 5 stars.

1 of 1 people found the following review helpful:

1.0 out of 5 stars Lost of power, engine service light came on, and stranded me, December 15, 2011

By 

Linda Ratcliff "MickeynDallas" (Dallas Texas) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: K&N E-0781 High Performance Replacement Air Filter (Misc.)

I was so impressed after reading about the 1 Million Mile Warranty, I ordered this filter for my 2008 Silverado 2500HD, Duramax 6.6L. Amazon 's fast delivery had it to me in 2 days. I was heading on a 500 mile road trip, and hoped this would help with fuel economy and performance. WRONG!
Three miles down the road and the warning lights started, Engine Lost Power, Change Air Filter, Service Engine Soon, and then I was on the side of the road.
Called H&N, the rep stated that "some '08 Duramax will not except this filter, and I should return to the OEM Filter." THANKS! A little too late for that, after I'm out here dodging traffic without an OEM Filter in my glovebox.
Removing the top access cover allowed me to limp back home and remove the problem cartridge.