For Honda TRX400EX TRX400X 400X ATV 99-07 Aluminum Air Box Intake without Lid

Aluminum Air Box Intake without Lid for Honda

This aluminum air box intake (without lid) replaces the restrictive stock air box on Honda TRX400EX, TRX400X, and 400X ATVs from 1999 to 2007, improving airflow and engine performance.

Overview

This Aluminum Air Box Intake without Lid for Honda TRX400EX/TRX400X/400X ATVs delivers increased airflow to the carburetor or throttle body, reducing restriction for better throttle response. It is designed for 1999-2007 models and fits directly in place of the original plastic box.

Built For Performance

• High-quality aluminum construction resists heat and cracking
• Open design without lid maximizes air intake volume
• Direct bolt-on replacement, no modification required
• Includes mounting gasket and hardware for easy installation
• Lightweight compared to stock plastic box

Fits These Machines

• for Honda TRX400EX (1999-2007)
• for Honda TRX400X (1999-2007)
• for Honda 400X (1999-2007)

On-The-Job Use

• Off-road trail riding demanding instant throttle response
• Dune riding where high airflow is critical
• Racing or performance-oriented ATV builds
• General trail and recreational ATV use

Specs At A Glance

Good To Know

Q: Does this air box require a separate air filter? A: Yes, since it does not include a lid, you will need to add a compatible pod-style air filter (not included) to protect the engine from debris.

Q: Will this air box fit with a stock carburetor? A: Yes, it is designed to bolt onto the factory intake boot and works with stock or aftermarket carburetors.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.