K&N Vent Kit 90 Deg 1/2in flg W/Grmt - 85-1150

Universal adapters for smog tubes, crankcase and valve cover vents. Requires drilling hole in air filter base or valve cover. All come with mounting hardware and gasket.

K&N Vent Kit Marine 1/2in flg 4in h - 85-1450

K&N Marine Style Vent Hose Adapters mount between the top and bottom plates of a custom chrome air filter assembly. Vent adapters accommodate breather hoses without drilling into the filter base.

K&N X-Stream Flow Control 4Bl Holley No Choke 14X4 - 66-3200

K&N XStream Air Flow Assemblies add surface area and redirects airflow inside the filter to pull in more air through the side pleats for even greater performance efficiency. The washable and reusable XStream Air Flow Top filter delivers the best...

K&N X-Stream Round Custom Top Assembly Filter - Red 12in ID 5.125in Inlet Dia 2.313in Height - 66-3000

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...

K&N X-Stream Top Assembly 12in ID 7.313in Neck Flange 5in Height - Red Filter - 66-3090

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...

K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 3.063in H - 66-3040

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...

K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 4.62in H w/Vent - 66-3010

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...

K&N X-Stream Top Assembly 5-1/8in x 14in x 4.75in H x 1.25in Drop Base - 66-3070

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...

K&N X-Stream Top Assembly 5.125in Flange ID / 14inx3.75in H / 1.25in Drop B - 66-3060

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...

K&N X-Stream Top Assembly 5.125in Neck Flange / 14in D / 6.62in H w/Vent - 66-3030

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...

K&N X-Stream Top Assembly 7.313in Flange ID / 11in x 4.5in Custom Assembly - 66-3140

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...

K&N X-Stream Top Assembly 9in OD / 5-1/8in Flange / 2-3/4 Velocity Stack - 66-3160

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...