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Part number: E-3930
Universal product
Product Details
K&N E-3930 Custom Air Filter
Products specifications
Air Cleaner Top Style Open
Air Filter Shape Rectangular
Air Filter Style Rectangular
Filter Color Red
Filter Material Cotton gauze
Filter Re-Oiling Amount 0.81 oz (24 ml)
Flanges None
Height 3.5 in (89 mm)
Height (in) 3.500 in.
Inner Wire No
inside Length 5.875 in (149 mm)
Inside Width 3.375 in (86 mm)
Length (in) 6.625 in.
Outside Length 6.625 in (168 mm)
Outside Width 4.25 in (108 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Rectangular Air Filter
Quantity Sold individually.
Size 6-5/8in x 4-1/4in x 3-1/2inHin
Top Material/Finish None
Width (in) 4.250 in.
Flange Angle 0 degrees
Flange Inside Diameter 0 in (0 mm)
Flange Length 0 in (0 mm)
Weight 0.6 lb (0.3 kg)

K&N's lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. K&N's replacement air filter is custom-designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. Simply remove the disposable air filter and replace it with a K&N air filter; no cutting or fitting is required. The filters are washable and reusable and are backed by K&N's million mile limited warranty.

  • Filters are washable and reusable and are backed by K&N's million-mile limited warranty
  • Fits into existing factory air box, no cutting or fitting is required
  • Designed to increase horsepower and acceleration
  • High air flow with excellent filtration
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Made an order and 2 days later got an email saying it was canceled. Picked up the phone and it was resolved quickly.  Product is now in the mail.  Prices are great.
Thanks Autoplicity you had the best prices I could find, fast shipping, and everything I ordered was exactly what I was looking for! Great Customer Service!
As long as this fits my 2015 Evo X ill be happy.
Great prices and fast delivery.   I ordered my cam+springs+phaser kit for my 2007 mustang,  I found the best prices with Autoplicity.   Strongly recommend and most certainly purchasing here again
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