Images below show various series/systems available for your model.
Current Production: Built and shipped within 1-2 business days
Available Exhaust Series for your application. What is the difference?
Available Exhaust Systems for your application. Which is best for me?
Available colors for your application. Color match guide
The Yamaha Grizzly 660 system is available as a Slip-On or Full System in the Performance and Titan series. Depending on the series, the slip-on system picks up 10-15% more horse power and torque throughout the power curve, and the Full System picks up 15-25% more. No matter which series, the HMF exhausts weight substantially less that the stock exhaust.
Fuel tuning is required learn more