The Yamaha® Grizzly 700 exhaust systems are available in the HMF™ Performance, Titan, and Swamp (with snorkel) Series as a Slip-On or Full System. The Performance Series picked up 5 horsepower and 4lb of torque. The Titan/Swamp Series (Quiet or Loud) picked up 4 horsepower and 3lb of torque. At idle, the stock muffler is at 85dB, while the Performance Series is at 98dB, the Titan/Swamp (Quiet) is at 86dB, and the Titan/Swamp (Loud) is at 93dB. Tuning is 100% necessary when using exhaust. The engine has air injection that must be blocked off to get valid AFR readings.
Full System Exhaust Fits:
(14-21) Grizzly 700, YFM7FG, SE, HZ, YFZ700
(16-21) Kodiak 700
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.