K&N individual round-style stacks for "early type" fuel injectors (single stacks) for Chevrolet and more. These filters are designed to fit with cut velocity stacks or with straight pieces of exhaust tubing. Rubber filter bases come with a molded-in velocity stack-type radius and step for smooth bore down from the element to the tube. Each filter has a rubber top with a stamped K&N logo. As with all K&N air filters, these are washable and reusable. Simply use K&N oil and cleaner to service your filter.
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