Grizzly Dyno/Tuning best optimizer setting for need help October 28, 2015 dstech I have a 2009 grizzy 700 with hmf performance slip on and uni air filter the optimizer I have is a gen 3 with 6 modes what are the best settings for it … thanks for any help Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related