K&N Engineering Performance Intake Kit

Fits 2004–2006 Nissan Altima 3.5L V6 and 2004–2008 Maxima 3.5L V6

Part #: 57-6015

Overview

Enhance your vehicle's airflow with the K&N Performance Intake Kit, designed specifically for select Nissan Altima and Maxima models equipped with a 3.5L V6 engine. This intake system is engineered to optimize air intake efficiency, supporting improved throttle response and engine performance. Crafted for enthusiasts seeking reliable, high-quality upgrades, this kit combines durability with functional design to help your vehicle perform at its best under various driving conditions. Whether you're looking to boost horsepower, increase torque, or simply improve your vehicle’s responsiveness, this intake kit offers a straightforward upgrade that complements your engine's natural capabilities. Its high-density polyethylene (HDPE) rotationally-molded tube ensures a smooth, unrestricted airflow path, contributing to consistent performance gains. Paired with a washable, reusable High-Flow Air Filter featuring oiled cotton media, the system maintains optimal airflow while reducing maintenance frequency, allowing up to 100,000 miles between filter services under normal highway driving. The included custom heat shield helps protect intake air from engine bay heat, ensuring cooler, denser air reaches your engine for better combustion efficiency. Designed for easy installation, this kit is a practical upgrade for those looking to enhance their vehicle’s performance without extensive modifications.

Key Features

This intake system features a durable HDPE construction that resists cracking and warping, ensuring long-lasting performance. The oversized, conical filter design maximizes airflow capacity and filtration efficiency, supporting consistent engine response. The washable filter media allows for cost-effective maintenance, while the heat shield helps maintain cooler intake temperatures. Its straightforward design facilitates a hassle-free installation process, making it suitable for DIY enthusiasts and professional installers alike. Overall, this intake kit provides a reliable upgrade that supports your vehicle’s performance and longevity.

Construction & Design

The rotationally-molded HDPE tube offers a seamless, smooth interior surface that minimizes airflow restrictions. The custom heat shield is engineered to deflect engine bay heat, maintaining cooler intake air temperatures. The high-flow filter features oiled cotton media, designed for maximum filtration efficiency and durability, supporting long service intervals.

Driving Feel & Feedback

This intake kit helps improve throttle response and engine sound, providing a more engaging driving experience. The increased airflow supports smoother acceleration and enhances overall engine responsiveness, making your vehicle feel more lively and responsive on the road.

Installation & Fitment

Designed for a direct bolt-on upgrade, this kit requires minimal modifications and can be installed with basic hand tools. The included components are tailored to fit specified Nissan Altima and Maxima models, ensuring a secure and precise fit.

What’s Included

The package includes the HDPE intake tube, high-flow washable filter, heat shield, and all necessary hardware for installation.

Ideal For

Perfect for Nissan enthusiasts and performance-minded drivers seeking a reliable, maintenance-friendly upgrade to enhance engine airflow and response.