Yamaha Rhino & Grizzly 660 CDI Performance Ignition
Unlock more RPM, more throttle, more power.
- Fits 2009–2015 Yamaha Rhino & Grizzly 660
- +1000 RPM rev limit increase over stock
- Removes factory speed limiter
- Removes reverse safety lockout limiter
- Plug-and-play installation
Overview
If your Rhino or Grizzly 660 feels held back, this 50 Caliber Racing CDI fixes it. By removing factory limits and increasing rev range, your machine pulls harder, revs higher, and responds quicker when you get on the throttle. Starts are easier, power comes on faster, and you stay in the powerband longer—exactly what you want when climbing, hitting mud, or pushing through rough terrain. It’s one of the simplest upgrades you can make that you’ll actually feel every time you ride.
- +1000 RPM rev limit increase (up to 7800 RPM)
- Removes factory speed limiter
- Removes reverse safety lockout limiter
- High-output CDI for increased spark energy
- Plug-and-play installation with OEM connectors
Fitment
- Fits 2009–2015 Yamaha Rhino 660
- Fits 2009–2015 Yamaha Grizzly 660
Fitment Notes
Compatible with both standard gauges and Rhino digital dash. Direct replacement for the factory CDI module with no cutting or wiring required.
- Also fits Chinese 700cc Rhino-style clones (carbureted engines only)
- Brands include HISUN, QLINK, HYOSUNG, BIG MUDDY, SUPERMACH
Built For
Trail riding, mud, hunting, and all-around off-road use. Ideal for riders looking to wake up their machine with more power, better throttle response, and fewer factory limitations.




