K&N Engineering 33-2031-2 High-Flow Drop-In Air Filter for Select Nissan and Infiniti Vehicles

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product! K&N's replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection, and are covered by K&N's No-Hassle Lifetime Limited Warranty. Associated products: 99-5000 Filter Care Service Kit Aerosol

• REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
• Million Mile Limited Warranty

Upgrade your vehicle’s factory air intake system with the K&N Engineering 33-2031-2 High-Flow Air Filter. Designed as a direct drop-in replacement for the original equipment filter, it installs inside the factory air box without requiring major intake modifications. Its layered, oiled cotton media is engineered to improve airflow while helping capture contaminants before they reach the engine.

The reusable K&N 33-2031-2 air filter is built for long-term performance and can be cleaned and serviced instead of discarded like a conventional disposable filter. This design may help reduce replacement waste while supporting consistent engine protection and responsive performance. The filter is backed by K&N’s 10-Year/Million Mile Limited Warranty, providing long-term coverage when maintained according to the manufacturer’s recommendations. For filter maintenance, K&N recommends the 99-5000 Filter Care Service Kit Aerosol.

Key Product Specifications & Technical Data

• Brand: K&N Engineering
• Part Number: 33-2031-2
• Product Type: Reusable high-flow automotive air filter
• Filter Media: Layered, oiled cotton media
• Installation Style: Direct drop-in replacement
• Application: Factory air box systems
• Warranty: K&N 10-Year/Million Mile Limited Warranty
• Serviceability: Washable and reusable with the appropriate filter care products

What’s Included

• One K&N Engineering 33-2031-2 reusable high-flow air filter

Fitment

Designed for select 1988–2008 Nissan vehicles with 1.8-liter engines, select 1987–2005 Nissan and Infiniti vehicles with 3.0-liter engines, and select 2000–2009 vehicles with 3.5-liter engines. Confirm exact vehicle fitment, engine configuration, and factory air-box compatibility before ordering.

Features:

• High-flow oiled cotton media: Supports improved airflow while helping protect the engine from airborne contaminants.
• Reusable construction: Washable and serviceable design helps reduce the need for repeated disposable filter replacements.
• Direct drop-in installation: Designed to fit within the factory air box without extensive intake system modifications.
• Long-term warranty coverage: Backed by K&N’s 10-Year/Million Mile Limited Warranty when maintained as directed.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1