HMF Racing Yamaha Grizzly 660- Swamp-XL-Series Slip On 02-08

The Yamaha Grizzly 600 is available as a Slip-On exhaust in the Performance exhaust. The slip-on system picks up 10-15% more horse power and torque throughout the power curve, and weighs substantially less that the stock exhaust. The Performance exhaust will increase sound levels approximately 4-6 decibels above the stock muffler, but the HMF Quiet Core insert can lower that 2-4dB.

Fits: (98-01) Grizzly 600, YFM600FN

FUEL TUNING IS REQUIREDLEARN MORE

Fuel Tuning is absolutely required when installing an HMF Exhaust on this machine. Failure to tune the engine can cause excessive damage to the exhaust system and engine, while voiding the warranty on your exhaust and possibly on your machine. (check with local dealer). See the tuning settings below for the proper fuel tuning solution on your machine.