I know a couple members here use this in their blower. Is this something that is highly recommened to use if one is going to add some performance to their engine? Would it make a huge difference over the OEM coupler.
Not a performance mod, just a better longer lasting coupling over stock.
This is what joins the pulley snout to the sc gears. It wears over time and needs to be changed out at some point?
With the m62 you have to remove the sc to get at the coupler. With the m90 you only need to remove the snout.