K&N Engineering · New

K&N Custom Racing Unique Oval Tapered Filter 17.313in OL B/7.75in OW B/14.625inOL T/6.125inOW T/9in

Name: K&N Custom Racing Unique Oval Tapered Filter 17.313in OL B/7.75in OW B/14.625inOL T/6.125inOW T/9in
Brand: K&N Engineering
SKU: knn100-8521
Price: 629.99 USD

MPN 100-8521 · Store SKU knn100-8521

$629.99

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Supplier stock checked 11/8/2026, 7:13:17 AM UTC. Adding a part does not reserve it.

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Product details

This K&N racing air filter was designed to fit and seal onto the opening of an unmodified Enderle Birdcatcher fuel injection hat. Enderle Birdcatcher fuel injection hats are used in drag racing, on some monster trucks and on other racing vehicles. This high-flow K&N air filter is washable and reusable. It adds little restriction while providing great air filtration. This K&N racing air filter was designed to fit and seal onto the opening of an unmodified Enderle Birdcatcher fuel injection hat. Custom Racing Assembly BIRDCATCHER FILTER

Manufacturer fitment & guides

Check 100-8521 against the manufacturer’s application information below.

Part-specific notes

Not CARB approved. Destination and intended-use restrictions must be checked before sale.
Emissions acknowledgement required before purchase.
California Proposition 65: Y

Manufacturer documents

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