K&N Engine Air Filter 33-2409 — High-Flow Washable Lifetime Replacement for Chevrolet/Infiniti/Nissan, Pre-Oiled

K&N 33-2409 is a washable, reusable high-flow engine air filter engineered to increase airflow and support improved engine responsiveness while lasting the life of your vehicle.

This premium replacement air filter fits a wide range of Chevrolet, Infiniti, Nissan and Renault models from the late 2000s through the 2020s and is built to deliver more airflow than a stock paper element without sacrificing filtration. Instead of disposing of one-use filters, the K&N 33-2409 uses layered cotton gauze media treated for longevity and can be cleaned and re-oiled, offering an economical, eco-friendlier filtration solution backed by K&N's limited lifetime warranty.

How does this filter affect everyday driving performance?

The 33-2409 is designed to increase the volume of air reaching the engine, which can improve throttle response and help the engine breathe more freely under load. Gains will vary by vehicle and conditions, but many users notice crisper acceleration and consistent airflow compared with a clogged disposable filter.

• Up to 50% increased airflow capability compared with some stock filters
• Multi-layer cotton gauze traps contaminants while permitting higher flow
• Pre-oiled and ready to install for immediate performance impact

How often will I need to service the K&N 33-2409?

K&N filters are washable and reusable; under normal highway driving, they typically require cleaning about every 75,000 miles. Cleaning frequency depends on driving environment—dusty roads shorten intervals while mostly paved, low-dust routes extend them.

• Standard cleaning interval: approximately every 75,000 miles in normal conditions
• Clean sooner in dusty, off-road, or heavy-stop driving environments
• K&N cleaning kits available for simple maintenance at home

Is the 33-2409 easy to install and compatible with my car?

The 33-2409 is a direct replacement designed to drop into the factory air box in minutes—no modifications required. It fits numerous models (see compatibility list) from Chevrolet Spark and multiple Nissan and Infiniti vehicles to select Renault and others; always verify fit with your year and model before purchase.

• Direct-fit design for factory air box installations
• No trimming, cutting, or special tools typically needed
• Check the provided vehicle compatibility list for exact year/model matches

Why choose a washable K&N filter over disposable ones?

Washable K&N filters reduce long-term cost and landfill waste because they are cleaned and reused rather than frequently replaced. The durable construction and lifetime warranty make them a practical choice for drivers looking for a one-time upgrade that lasts.

• Reusable design reduces recurring replacement costs
• Durable materials and construction for extended service life
• Backed by a limited lifetime warranty for added confidence

Who is this for: The K&N 33-2409 suits drivers who want a straightforward, long-lasting filtration upgrade for compatible Chevrolet, Infiniti, Nissan and Renault vehicles. It’s ideal for owners seeking improved airflow and throttle feel without modifying the intake system, environmentally minded shoppers wanting to cut disposable-filter waste, and anyone who prefers a durable, serviceable part with a strong manufacturer warranty.