K&N

High-Flow Replacement Air Filter

$68.99

SKU: KNN33-2399

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The K&N Air Filter 33-2399 is engineered to provide your vehicle's engine with clean, unrestricted airflow, potentially increasing horsepower and acceleration. The filter is constructed with pleated cotton gauze sandwiched between two layers of aluminum wire, effectively trapping dust and debris while allowing for maximum performance. The reusable nature of the filter means it can be cleaned and reused for up to 50,000 miles between services, reducing waste and eliminating the need for frequent replacements. This eco-friendly aspect is highlighted as a benefit over disposable filters. The K&N Air Filter 33-2399 is street legal in all 50 states and is backed by a 10-Year / 1,000,000 Mile Limited Warranty. K&N states that using their performance air filter will not void or affect your vehicle's warranty. This air filter is compatible with a range of Infiniti, Nissan, and Suzuki models, including the 2007-2008 Infiniti G35, 2008-2013 Infiniti G37, 2014-2017 Infiniti QX50, 2007-2009 Nissan 350Z, 2009-2020 Nissan 370Z, 2008-2012 Infiniti EX35, 2014-2015 Infiniti Q60, 2007-2009 Suzuki SX4, 2011-2012 Infiniti G25, 2015 Infiniti Q40, and 2013 Infiniti EX37.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandK&N
Part NumberKNN33-2399
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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