QuadBoss 04-08 Yamaha YFM660 Grizzly 4x4 High-Performance CDI

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
2004-2008	Yamaha	YFM660F Grizzly 4x4	Base