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

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

Marsoni

M251S

$100.92

Get it in 3 business days with 1 day shipping. Friday, May 29

K&N X-Stream Top Assembly 9in OD / 5-1/8in Flange / 2-3/4 Velocity StackNot 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 protection available for your engine. Installation Instructions Technical Bulletin

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Your K&N X-Stream Top Assembly 9in OD / 5-1/8in Flange / 2-3/4 Velocity Stack orders ship within 1-2 business days.

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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Update: Different color packs fit differently. I've purchased two packages, one all-black and one black with the colorful waistbands. The all-black are a little smaller. IMO the all-black run a half to a full size small, and the black with the colorful waistbands run true to size. Listen, all of our bodies and preferences are so different, but these are perfect for my body and my fit preference. They hit at my bellybutton and I would describe the length as short-boyshorts, but not hipsters. Most importantly, they're cotton, which my body reacts much better to these days.

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Reviewed in the United States on February 13, 2026

Verified Purchase

Tat Phoenix

Waukegan, US

★★★★★ 5

Good quality

Size: Medium, Color: Set-unbl

They fit perfectly and seem well made

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Reviewed in the United States on February 22, 2026

Verified Purchase