K&N Engineering E-3952 Custom High-Flow Rectangular Air Filter - 6.75 in Outside Length x 4.5 in Outside Width x 2.5 in Height

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.

• Will not void vehicle warranty
• Million Mile Limited Warranty

Upgrade your vehicle's airflow with the K&N Engineering E-3952 custom high-flow air filter, designed to fit standard rectangular air boxes. Constructed with layered, oiled cotton media, this filter is engineered to maximize airflow while capturing contaminants, helping to improve engine performance and horsepower. Its durable, reusable design ensures it can be washed and reused repeatedly, offering long-term value and performance. Backed by K&N's 10-year or 1-million-mile limited warranty, this filter provides confidence in quality and longevity.

The E-3952 filter features a straightforward drop-in installation that requires no modifications, making it suitable for a wide range of vehicles. Its advanced layered cotton media is designed to optimize airflow, which can lead to throttle response improvements and increased power output. The filter is engineered to fit precisely into your factory air box, maintaining a secure seal to prevent unfiltered air from bypassing the media. With its corrosion-resistant construction and premium materials, this filter is built to withstand harsh conditions and ensure consistent performance.

Designed to offer both performance and protection, the K&N E-3952 filter does not void your vehicle’s warranty and is compliant with industry standards for durability and efficiency. Its reusable nature reduces waste and ongoing replacement costs, making it an environmentally friendly and economical choice for car enthusiasts seeking reliable, high-performance air filtration. Whether you're upgrading for increased horsepower or improving engine longevity, this filter delivers superior airflow and trusted K&N quality for a lifetime of driving benefits.

Features:

• Layered, oiled cotton media for improved airflow and contaminant capture

• Reusable design for long-term use and environmental sustainability

• Easy drop-in installation into factory air box

• Engineered to increase horsepower and throttle response

• Backed by K&N's 10-Year/Million Mile Limited Warranty

• Durable construction resistant to harsh conditions

• Does not void vehicle warranty

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