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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   2 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.


Available Information

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 Material/FinishBlack Powder Coated
Top StyleX-Stream
Weight1.7 lb (0.8 kg)

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

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