These CDI Boxes are designed to unleash the power and enhance overall performance. Includes duplication circuits for maximum reliability, increased RPM redline and altered ignition advance curves to increase performance throughout the RPM range
- Raises rev limiter by 1,000+ rpm over stock boxes
- All boxes have monocurve technology
FITS
Yamaha YFM660F Grizzly 4x4 Base 2004
Yamaha YFM660F Grizzly 4x4 Base 2005
Yamaha YFM660F Grizzly 4x4 Base 2006
Yamaha YFM660F Grizzly 4x4 Base 2007
Yamaha YFM660F Grizzly 4x4 Base 2008
OCPPARTSWAREHOUSE is not responsible for late deliveries outside of our control. Severe weather, carrier issues, pandemics, natural disasters, etc.
Orders over $75.00 qualify for free shipping.
Orders under $75.00pay a flat shipping rate of $10.95 Offer only applies to 48 contiguous states. Hazardous Materials ship UPS Ground only.
Orders that contain backorders, the order will be held until all parts are in. A customer representative will reach out to you if this is the case. At that time a decision can be made whether or not to split the order.
Alaska orders will be charged a flat $35 charge and will be shipped Post Office Priority Mail. We do not ship Oversized mail to Alaska.
Hawaii orders will be charged a flat $35 charge and will be shipped Post Office Priority Mail. We do not ship Oversized mail to Hawaii.
Puerto Rico orders will be charged a flat $35 charge and will be shipped Post Office Priority Mail. We do not ship Oversized mail to Puerto Rico.






