QuadBoss 04-05 Yamaha YFZ450 High-Performance CDI

When standard revs won't cut it. These CDI Boxes are designed to enhance overall performance. Includes duplication circuits, increased RPM redline and altered ignition advance curves. Comes with altered advance curves to increase performance throughout the rpm range.

This Part Fits:

Year	Make	Model	Submodel
2004-2005	Yamaha	YFZ450	Base