X-Stream® Air Flow Assemblies, Air Filters, and Air Filter Tops

XStream Air Flow Tops
Replaces the top of your existing round filter.

K&N gives you the power you've been looking for with the new XStream^® Air Flow Top.

Not only does the 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, and comes in a wide range of applications. Sizes include 9-, 11- and 14-inch diameters. The 14-inch tops are available in anodized black, red, blue or polished aluminum trim ring.

XStream Air Flow Tops
Dia. Part # Color 9" 66-0901 Black 11" 66-1101 Black 14" 66-1401 Black	Dia. Part # Color 14" 66-1401XB Blue 14" 66-1401XP Polished Alum. 14" 66-1401XR Red

XStream Assemblies
Total Height = minimum clearance required above carburetor flange.

11 " ASSEMBLIES

Neck    Element Part #   Part #          Total
Flange Height   Element Complete Assy. Height     Color
5-1/8" 2-3/16" E-1200   66-3110         3-1/2"     Black
5-1/8" 3-1/2"   E-1250   66-3120         4-3/4"     Black
5-1/8" 5"       E-3680   66-3130         6-1/4"     Black
7-5/16" 3-1/2"   E-1250   66-3140         4-1/2"     Black

9 " ASSEMBLIES
Neck    Element Part #   Part #          Total
Flange Height   Element Complete Assy. Height     Color
5-1/8" 2-3/4"   E-3530   66-3150         4-3/8"     Black
5-1/8" 2-3/4"   E-3530   66-3160         8-1/4"*    Black

14" ASSEMBLIES
Neck    Element Part #   Part #          Total
Flange Height   Element Complete Assy. Height     Color
STANDARD 9/16" RAISED BASE
5-1/8" 2-5/16" E-3740   66-3000         3-7/8"     Black
5-1/8" 3"       E-1650   66-3010         4-5/8      Black
5-1/8" 4"       E-3750   66-3020         5-7/8"     Black
5-1/8" 5"       E-3760   66-3030         6-7/8"     Black

1-1/4" DROP BASE
5-1/8" 3"       E-1650   66-3040         2-3/4"     Black
5-1/8" 4"       E-3750   66-3060         3-3/4"     Black
5-1/8" 5"       E-3760   66-3070         4-3/4"     Black

7/8" DROP BASE
5-1/8" 3"       E-1650   66-3050         3-1/8"     Black

DOMINATOR
7 5/16" 4"       E-3750   66-3080         5-1/2"     Black
7-5/16" 5"       E-3760   66-3090         6-1/2"     Black
7-5/16" 6"       E-3770   66-3100         7-1/2"     Black

XStream Pre-Wrap

XStream® Top PreCharger Wraps

Extends your Filtercharger's service interval in dusty conditions.

XStream® Chevy & GMC Replacement Lid

XStream® Universal Air Filters - Designed for Serious Racers

XStream Universal Clamp-on Filter Diagram

To find an XStream universal air filter for your need go to our universal air filter search page, select a style (round tapered, etc.) then choose "Top Style" as one of your search attributes along with "X-Stream". The result will only display X-Stream top filters for the filter type selected.

These filters are legal ONLY for racing vehicles. Not applicable, nor intended for use on emission controlled street or highway vehicles.

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	K&N XStream^® Air Flow Assemblies, Filters, and Filter Tops