Uni Filter NU-1425ST Air Filter 2023-2026 KTM Husqvarna Gas Gas SX SX-F TC FC

Upgrade Your Airflow with Uni Filter Performance

Dust and silt are the silent killers of high-performance engines. When you're pushing your bike to the limit, a clogged or restrictive filter can rob you of precious horsepower and lead to costly internal damage. Replacing your stock unit with a Heavy Duty Uni Filter ensures your engine breathes nothing but clean, high-velocity air. At Moto-House MX, we know that championship-winning performance starts with superior protection, and this filter is the gold standard for riders who refuse to compromise on engine longevity.

The Uni Filter NU-1425ST features a specialized two-stage foam design that provides Racing Performance by maximizing surface area without sacrificing filtration density. This dual-layer technology allows the filter to trap even the finest particulates while maintaining unsurpassed airflow. Precision-engineered for a seamless fit, the Ultra-Seal base ensures a vacuum-tight seal against the airbox, preventing any "dirt bypass" that often plagues lesser designs. Proudly made in the USA, this washable and reusable filter is built to endure the harshest off-road environments.

Top Features: Uni Filter NU-1425ST

• Two-Stage Foam: Dual-layer design comes apart for maximum airflow and the ultimate deep-cleaning capability.
• Ultra-Seal Technology: Precision-molded base ensures an airtight fit in the stock airbox exactly like an OEM replacement.
• Unsurpassed Filtration: Industry-leading dirt-stopping power while maintaining high-velocity intake performance.
• Easy Maintenance: Clean easily with grease-cutting dishwashing detergent; just clean, oil, and reuse.
• American Made: High-quality construction manufactured in the USA for serious off-road racers.

Expert Pro-Tip: Always apply a thin layer of rim grease to the Ultra-Seal base before installation to ensure a 100% dust-proof seal in sandy conditions.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2023-2026	KTM	SX / SX-F / XC / XC-F (125-450)
2023-2026	Husqvarna	TC / FC / TX / FX (125-450)
2024-2026	Gas Gas	MC / EX / EC (125-450F)
2024-2026	KTM	EXC-F / XCF-W (350-450)
2024-2026	Husqvarna	FE / TE (125-501S)
2024-2025	KTM	450 SMR

Frequently Asked Questions

Q: Do I need to oil this filter before use?
A: Yes, Uni Filters are shipped dry. You must apply a high-quality foam air filter oil before installation to ensure proper filtration.

Q: Can I use gasoline to clean the foam?
A: No, gasoline will break down the foam cells and the glue. Use a dedicated filter cleaner or grease-cutting dishwashing soap.

Q: How often should I replace my Uni Filter?
A: While they are reusable, we recommend replacing the foam if you notice any tearing, crumbling, or if the glue seams begin to separate.

Recommended Pairings: Maxima FFT Foam Filter Oil and Moto-House MX Dust Covers.

Stop by our local store in Montverde, FL or lightning-fast shipping across the USA. Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The Best Motocross/UTV & ATV Shop in Central Florida.