K&N 66-3150

Custom Assemblies > X-Stream Top Assembly
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   1 Customer Review
List Price: $248.45
Your Price: USD $136.99

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Not only does the K&N XStream® add filter area, it actually redirects airflow inside the filter to pull in more air through the side pleats for even greater performance efficiency. Cleanable and reusable, the XStream® Air Flow Top filter delivers the best protection available for your engine.

  • Washable and reusable air filter
  • Air filter top adds filter area
  • Improves air flow
  • Washable and reusable

Available Information

Product Specifications

Air Filter ColorRed
Air Filter Height2.875 in (73 mm)
Air Filter Inside Diameter8 in (203 mm)
Air Filter MaterialCotton Gauze
Air Filter ShapeRound
Filter MaterialCotton Gauze
Inlet Diameter5.125 in (130 mm)
Mounting Hardware IncludedYes
Neck Flange5.125 in (130 mm)
Overall Height4.5 in (114 mm)
Product Box Height4.81 in (122 mm)
Product Box Length9.19 in (233 mm)
Product Box Width9.13 in (232 mm)
Product StyleCustom Assemblies
Replacement FilterE-3530
Size9 Inch
Top Material/FinishBlack Powder Coated
Top StyleX-Stream
Weight2.3 lb (1.1 kg)

Product Reviews

Review part 66-3150
Wednesday, October 22, 2014 - Part 66-3150
I have owned my 86 Olds 442 since I was 15. This June I turn 26 and the car has always had a KN air filter. The same one I put in it when I first bought it. Since I always used the KN Xtreme filter top on my Late model why not use it in the Olds. They didn't make one at the time but since then KN has produced a filter top that fits GM standard air boxes. KN has saved this Olds close to 18,000 gal. of gas when added all up over the last couple of years. Thanks to all the engineers at KN for top of the line filters. The horsepower in my racecars is 2nd to none thanks to the KN crew.

Jacob Coffin
Statesville, North Carolina