The ESR Yamaha YFZ450 Bolt-On Intake is specifically designed for Yamaha ATVs from model years 2004 to 2006. It is a genuine OEM part with the manufacturer part number ESR YFZ450, ensuring a perfect fit and high quality performance. The intake is not universal, providing a tailored solution for the YFZ450 model, offering peace of mind for riders looking to upgrade or replace their current intake system with a trusted brand like ESR.