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K&N Custom XD Air Filter - Round 14in OD x 5in H

K&N Custom XD Air Filter - Round 14in OD x 5in H

KNNE-3978XD

$199.99
$199.99
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This part is made to order only, contact us for rough ETA.

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K&N XD air filters use a Deep Pile Design, Extra Fine Weave Grade Cotton and alternate geometries for added efficiency and capacity for off-road conditions. This extra thick filtering medium provides the increased protection demanded by high dust conditions while continuing to provide the performance necessary to stay in the front of the pack. The XD Cotton medium was developed for the extreme conditions encountered by race teams in the Baja 1000. This real world testing is combined with testing performed at K&N's own Dust Retention Laboratory in conformity with the ISO 5011 test protocol. XD Cotton Air filters can be cleaned in the same way as K&N's original cotton air filters.
Technical Bulletin
MPN: E-3978XD
⚠️ Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Learn more »
K&N Custom XD Air Filter - Round 14in OD x 5in H

$199.99

FAQ

When does my order ship?

Most orders ship in 1–3 days, but some items may take longer due to demand and manufacturing delays. For urgent orders, please contact us to confirm stock before purchasing.

Are returns accepted?

Not satisfied? Return any item within 30 days. See our FAQ page for details.

Buy now pay later options available?

Yes. Pay later in installments with Affirm or PayPal Pay Later.

Do we offer price matching?

We’re happy to price match any legitimate listing from an authorized dealer, as long as the item is in stock and the price is current. We cannot match outdated or incorrect discounts based on old MSRP, since those prices are often errors the competitor cannot honor.