K&N High-Flow Original Lifetime Engine Air Filter – Premium, Washable for Infiniti/Nissan (G35, G37, Q40, Q60, QX50, 350Z, 370Z)

The K&N High-Flow Original Lifetime Engine Air Filter is designed to deliver a balance of performance and practicality for a range of Infiniti and Nissan models. It replaces your factory element with a washable, reusable filter that aims to promote smoother air delivery to the engine, while reducing the need for frequent disposables. Built to last, this filter carries K&N’s reputation for performance-focused filtration and straightforward maintenance.

Performance and design

Engineered media is crafted to support more air reaching the combustion chamber, potentially contributing to improved throttle response and overall engine performance. Unlike single-use paper filters, this unit is washable and reusable, offering a long-term filtration solution that stays out of landfills when properly cared for.

• Increases airflow up to 50%, which can translate to crisper response in daily driving
• Four-layer cotton gauze media with a tacking agent creates a protective mesh against contaminants
• Simple drop-in installation into your factory air box for a quick upgrade
• Made in the USA with durable materials for lasting performance

Filtration detail and durability

The four-layer design uses premium cotton gauze media, treated for an intricate mesh that aims to balance airflow with filtration. The rugged construction is built to hold up amid engine heat and vibration, providing a dependable filtration option across years of use.

• Durable construction designed to endure typical road conditions and driving temperatures
• Material choice and build quality emphasize reliability in daily driving and longer trips

Maintenance, longevity, and eco-friendliness

Maintenance is spaced for typical highway driving: a cleaning interval around 75,000 miles is suggested under normal usage (based on about 15,000 miles/year). The filter is washable and reusable, reducing disposable waste over time. It also comes with a notable 10-Year/Million Mile Limited Warranty, signaling long-term coverage for eligible scenarios.

• Washable design helps you avoid frequent replacements and lowers ongoing costs
• Eco-friendly approach reduces landfill waste by reusing the same filter media
• Premium filtration materials designed to last beyond typical disposable filters

Compatibility and fit

Specifically shaped to fit easily into factory air boxes, the filter supports a broad set of Infiniti and Nissan models from 2007 through 2020. Models covered include G35, G37, Q40, Q60, QX50, 350Z, 370Z, and related Skyline/Fairlady variants.