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K&N E-1997 4.6 out of 5 stars 5 Customer Reviews
Universal Air Filters > Replacement Air Filter

List Price: $85.32
Your Price: $57.99

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K&N's 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. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty™ and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED.

[More Information on Replacement Air Filters]
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®

Product Specifications

Air Filter Large End Diameter:6 in (152 mm)
Air Filter Shape:Round Tapered
Base Outside Diameter:6 in (152 mm)
Filter Material:Cotton Gauze
Filter Re-Oiling Amount:2.12 oz (63 ml)
Flange Inside Diameter:4 in (102 mm)
Flange Length:1 in (25 mm)
Flange Type:Centered
Height:8.625 in (219 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:E-1997
Product Box Height:11 in (279 mm)
Product Box Length:6.38 in (162 mm)
Product Box Width:6.38 in (162 mm)
Product Style:Round Tapered Universal Air Filter
Top Material/Finish:None
Top Outside Diameter:4.75 in (121 mm)
Top Style:Rubber
Weight:1.4 lb (0.6 kg)

Product Reviews

 Great product. I only use K&N filters on my 2008 Bullitt!
Patrick Chellino, Las Vegas Nevada
 This air filter is a significant improvement over the original equipment. Engine is noticably more responsive. If you are lucky enough to have a Bullitt Mustang, there are only two modifications that I recommend. One is to upgrade tires to 255/45/18 [brand], and the other is to upgrade cold air intake with K&N high flow filter!
Rick, Phoenix, Arizona
 Great product and reliability. A brand performance enthusiasts have learned to trust.
Joel Oliver, Wildwood, Minnesota
 Expected to get higher MAF readings on my tuner/data logger than the stock filter, readings the same.
Mark Snyder, Lucerne, Indiana
 The part was a great fit and was easy replacement for the stock part without any modifications.
Lynn W Dornan, Michigan
Product (E-1997) was shipped quickly, and arrived undamaged.

Installation was easy.....direct replacement for OEM filter...fit exactly as the original.

OEM filter needs replaced every 10k-11k miles @ $80 per filter.  K&N is a good value even if it does not last 50k miles.  Clearly less restrictive.

Thanks Mike

PS:  I have your filters in my other cars.
Mike Paletta, Los Angeles, California