Janssen Performance Track/Trail Air Box Cover – Premium Protection for 2009-2025 Yamaha YFZ450R & YFZ450X

Upgrade your 2009-2025 Yamaha YFZ450R, YFZ450X, YFZ450R SE, and YFZ450X Bill Balance Edition with the Janssen Performance Track/Trail Air Box Cover—engineered to provide superior filtration, enhanced engine protection, and unrestricted airflow for maximum performance.

Key Features:

• Pre-Filter Protection – Acts as the first line of defense, preventing dirt, sand, and debris from reaching your primary air filter.
• Superior Filtration – Keeps harmful particles out while allowing your engine to breathe freely.
• Water and Mud Resistance – Designed to handle extreme riding conditions, keeping moisture from interfering with performance.
• Unrestricted Airflow – Optimized design ensures maximum air intake without restricting power.
• Extended Filter Life – Reduces strain on your primary air filter, cutting down on maintenance and prolonging engine health.
• Customizable Appearance – Replacement pre-filter mesh is available in multiple colors (sold separately), allowing for a personalized look.

Recommendation: To maximize performance after installation, fuel mapping adjustments may be beneficial to maintain the ideal air-to-fuel ratio.

Whether you're on the track or trail, this air box cover provides the protection and performance your YFZ450R/YFZ450X needs to stay ahead of the competition.