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The K&N X‑Stream Air Flow top assembly increases filter area and redirects intake flow to draw more air through the side pleats, improving filtration efficiency. Cleanable and reusable, it lengthens service intervals while protecting the engine. The top assembly fits common 5‑1/8 in flange installations and is offered in a red finish for universal applications.
K&N X-Stream Top Filter - Red - Size 9in - 5.125in Neck Flange / 2.75in Height
