K&N 57-9027 Engine Air Intake and Air Box Kit

Performance Intake System

The K&N 57-9027 is a performance air intake system for select Toyota Tundra and Toyota Sequoia applications. It replaces the restrictive factory air filter and intake tubing with a freer-flowing design that helps the engine draw in more air.

Built as a 57 Series FIPK intake, this system uses a molded high-flow cotton gauze filter, a black HDPE intake tube, and a factory-style air box layout. The 57-9027 is street legal in all 50 states and carries CARB EO D-269-34 for the listed applications.

• 57 Series FIPK design for improved intake airflow
• Washable cotton gauze filter with a pre-oiled element
• Black high-density polyethylene intake tube with round outlet
• Includes the ports and adapters needed for the specified applications
• Street legal in all 50 states for the listed fitments

Fitment and Application

Fits 2005-2006 Toyota Sequoia, N/A. Fits 2005-2006 Toyota Tundra, N/A. This part cross-references no listed interchange numbers for the same application.

On Toyota Tundra and Toyota Sequoia models, the intake tube is shaped to route air smoothly into the throttle body while accommodating the factory mass air sensor, fuel pressure regulator vent line, and crank case vent hose where required. The oversized filter is serviceable and can remain in use for extended mileage intervals depending on driving conditions.

What It Can Address

• Restricted airflow from the factory intake assembly
• Reduced throttle response caused by intake restriction
• Loss of usable power and acceleration across the RPM range
• Fitment issues when replacing the factory air box and tubing on listed Toyota applications

Installation Notes

Installation typically takes about 90 minutes or less with commonly available tools. The system is designed for the listed Toyota Tundra and Toyota Sequoia applications, and the intake tube includes the required ports for those fitments. Verify CARB compliance and application details before installation.

Quality Assurance

K&N backs the 57-9027 with a Million Mile Limited Warranty. The system is engineered for the specified applications and is approved for street use in all 50 U.S. states.