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K&N 66-1401 X-Stream Top Filter

Custom Assemblies > X-Stream Top Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   3 Customer Reviews
  • Air filter top adds filter area
  • Replaces metal factory filter lid with a lid with a built-in air filter top
  • High air flow with excellent filtration
  • Washable and reusable
K&N XStream Air Flow Tops replace the top of your existing round filter and add a new dimension to engine breathing by feeding your engine all the air it can use. They are washable and reusable just like other K&N Air Filters.


Product Specifications

Air Filter ShapeRound Lid
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.92 oz (27 ml)
Height1 in (25 mm)
Outside Diameter14 in (356 mm)
Package Contents1 X-Stream Top Lid
Package Quantity1
Product Box Height15.13 in (384 mm)
Product Box Length15.38 in (391 mm)
Product Box Width2.25 in (57 mm)
Product StyleAccessories
Top MaterialBlack Powder Coated
Top StyleX-Stream
Weight1.7 lb (0.8 kg)

K&N 66-1401 X-Stream Top Filter Product Reviews

Monday, December 26, 2016 - Part 66-1401
I have to modify my air cleaner a little more but it fits and looks good, no pics at this time. I love and have all K&N's in my Dodge. Air filter, fuel filter, breather and oil filter. Now I have an air filter in my Jeep.

James Emmons
Liverpool, New York
Sunday, October 16, 2016 - Part 66-1401
This product has improved all breathing aspects of my Ford big block 460. No change in carburation was needed. The overall satisfaction of installing this low-cost, high gain element, is indeed, very satisfying.

Anthony Aulph
Omaha, Nebraska
Saturday, August 13, 2016 - Part 66-1401
Product works great, added a 14x3 air cleaner element, truck runs awesome now. More power, better mileage. I recommend K&N products to everyone.

Christ Hoerner
Kihei, Hawaii