## Prox Air Filter Insert Foam (HFF1023) Honda TRX 400 EX '99-'08, TRX 400 X '09-'14 The Prox air filter insert foam (HFF1023) is a high-quality replacement for the original filter in Honda TRX 400 EX ('99-'08) and TRX 400 X ('09-'14) ATVs. It guarantees optimal engine protection against contaminants while ensuring free airflow, essential for achieving full power. ### Why choose the Prox air filter insert? Prox is a renowned manufacturer of aftermarket parts for motorcycles and ATVs, known for the high quality and durability of its products. The HFF1023 filter insert is precisely manufactured from durable filter foam, which effectively traps dust, sand, and other contaminants, preventing them from entering the engine. ### Benefits of using the Prox insert: * **Excellent filtration:** Effectively protects the engine from contaminants, extending its lifespan. * **Optimal airflow:** Provides the right amount of air to the engine, resulting in better performance. * **Durability and strength:** Made of high-quality materials, resistant to wear and tear. * **Perfect fit:** Precisely fits Honda TRX 400 EX ('99-'08) and TRX 400 X ('09-'14) models. * **Easy installation:** Simple and quick filter replacement. The Prox air filter insert foam (HFF1023) is an investment in the long and trouble-free operation of your ATV. By providing optimal engine protection, it contributes to maintaining its full power and efficiency.