K&N Engineering 77 Series High Flow Performance Kit

Fits 2005–2009 Nissan Pathfinder, Xterra, and Frontier V6-4.0L

Part #: 77-6014-1KP

Overview

The K&N 77 Series High Flow Performance Kit is a premium cold air intake system designed to enhance the airflow and overall performance of your Nissan V6-4.0L engine. Crafted for enthusiasts seeking increased horsepower and torque, this system features a mandrel-bent aluminum intake tube that optimizes airflow efficiency. The kit is ideal for drivers who want to improve their vehicle’s response, sound, and power output while maintaining reliability and durability. With a focus on quality engineering, this intake helps your engine breathe better, supporting improved acceleration and throttle response during everyday driving or spirited outings.

Key Features

This high-performance intake kit combines innovative design with durable materials to deliver consistent results. Key features include:

• Mandrel-bent aluminum intake tube for smooth airflow
• Washable, reusable High-Flow Air Filter with oiled cotton media for long-lasting filtration
• Oversized, conical filter design for increased surface area and filtration capacity
• Custom heat shield or air box to protect intake air from engine bay heat
• Easy bolt-on installation with minimal tools required
• Designed to support up to 100,000 miles between filter cleanings under normal highway conditions
• Stainless steel clamps and hardware for durability and secure fit

Construction & Design

The intake system features a mandrel-bent aluminum tube that ensures consistent diameter and smooth airflow paths, reducing turbulence and enhancing performance. The included heat shield or air box helps maintain cooler intake air temperatures, which is critical for maximizing power and efficiency. The high-flow filter is constructed with oiled cotton media, providing excellent filtration while allowing maximum airflow.

Driving Feel & Feedback

Installing this intake system helps your vehicle respond more quickly to throttle inputs, providing a more engaging driving experience. The increased airflow can produce a deeper, more aggressive intake sound, adding to the vehicle’s sporty character. Drivers will notice improved acceleration and responsiveness, especially during high-demand driving situations.

Installation & Fitment

The kit is designed for straightforward installation, typically requiring basic hand tools. It replaces the factory intake components with minimal modifications, making it suitable for DIY enthusiasts and professional installers alike. Proper fitment is ensured through precision-engineered components that match the vehicle’s specifications.

What’s Included

The package includes the mandrel-bent aluminum intake tube, washable high-flow air filter, heat shield or air box, clamps, and all necessary hardware for a complete installation.

Ideal For

This intake system is perfect for Nissan owners looking to boost their vehicle’s performance, improve throttle response, and enjoy a more aggressive engine sound. It’s an excellent upgrade for daily drivers, weekend enthusiasts, and anyone seeking reliable, long-lasting airflow improvements.