K&N Stubstack Air Horn 5.13in L x 5.13in W x – 85-0400

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K&N Stubstack Air Horn 5.13in L x 5.13in W x 1.68in H

This K&N Stubstack is designed to be used with Holley 390-850 cfm square bore carbs (4150/4160), that have had the choke horn milled off and still use an air cleaner. Eliminates the need for hand polishing and radius work. Will work with all K&N Custom Chrome Racing Air Cleaners, including Tall Velocity Stack Air Cleaners. The K&N Stubstack is designed to increase the airflow of carburetors by decreasing the restriction around the choke horn.

This K&N Stubstack is designed to be used with Holley 390-850 cfm square bore carbs (4150/4160), that have had the choke horn milled off and still use an air cleaner. The K&N Stubstack is designed to increase the airflow of carburetors.

K&N Stubstack Air Horn 5.13in L x 5.13in W x 1.68in H. Reduces turbulence, improves metering accuracy. Improves Metering Accuracy. Stubstack Air Horn. Carburetor Mount

Air intake systems are a common first mod to many project cars. They are quick and simple to install while also enhancing the looks of your engine bay, the sounds of your engine, and the performance of your vehicle.

Air intake components consist of air filters, vacuum lines, and connectors used to complete your air intake setup.

Additional Details

NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.

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WARNING: Cancer & Reproductive Harm. For more information, go to www.P65Warnings.ca.gov

Installation Instructions

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About K&N Engineering

For over 50 years, K&N has been an industry-leader in automotive filtration and technologyoffering products to increase performance, protection, and longevity in thousands of vehicle applications for consumers worldwide.HISTORYIn the early 1960s, two motorcycle racers, Ken Johnson and Norm McDonald (K&N), developed a ground-breaking new idea for an air filterone that could perform under the demands of dusty, dirty off-road environments. After experimenting with numerous types of filter media, they discovered that an oiled cotton design allowed the filter to not only capture contaminants very efficiently, but also allowed it to be washed and reused, and the original K&N High-Flow Air Filter was born. Five decades later, K&N is still innovating industry-leading filtration technology, and offers outstanding protection for everything from top-fuel dragsters to commuter vehicles across the globe.