Specifications
- Brand
- QuadBoss
- Part #
- 463775
- UPC
- 887337258164

QuadBoss 04-08 Yamaha YFM660 Grizzly 4x4 High-Performance CDI
$158.29
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Fits 2004-2008 Yamaha YFM660 Grizzly 4x4. QuadBoss High-Performance CDI Box raises the rev limiter by over 1,000 RPM for improved performance.
Key Features
- Fits 2004-2008 Yamaha YFM660F Grizzly 4x4.
- Raises the rev limiter by over 1,000 RPM compared to the stock unit.
- Features monocurve technology for consistent performance.
- Includes duplication circuits for increased reliability.
- Alters ignition advance curves to improve performance throughout the RPM range.
- Yamaha YFM660F Grizzly 4x4 2004-2008
Product Details
This QuadBoss High-Performance CDI box is made for your 2004-2008 Yamaha YFM660F Grizzly 4x4. It's designed to help you get more out of your ATV's engine by changing how the ignition system works. If you're looking to unlock some extra power and get a bit more responsiveness from your Grizzly, this is a solid option.
What this CDI box does is alter the ignition timing and also raises the rev limiter. Specifically, it can increase the engine's redline by over 1,000 RPM compared to the stock unit. This means your engine can spin faster, which can translate to improved performance throughout the entire RPM range. It uses monocurve technology and includes duplication circuits for added reliability, so you can count on it to perform consistently.
Keep in mind that this part is not CARB approved and cannot be shipped to California. If you're outside of California and looking to get a bit more performance out of your Grizzly, this CDI box is a straightforward way to do it.
Specifications
- Brand
- QuadBoss
- Manufacturer Part #
- 463775
- UPC
- 887337258164
Frequently Asked Questions
QuadBoss 04-08 Yamaha YFM660 Grizzly 4x4 High-Performance CDI




