I would never have seen those coming. The old style Stihl saws absolutely needed what MaxFlow offered. And they were awesome, running 1128s (046/440/460s) as a saw module on fires there wasn’t a need to clean them for an entire two week roll. They didn’t let anything get past the filter base, unlike the 500i or the 661.
The 462, 400 and 362? Absolutely not. Just like Husqvarnas and Jonsereds. The problem MaxFlow was solving was unique to certain Stihl models… And now that those problems are gone, I guess they have to find a way to stay in business. It literally takes the effectiveness of the centrifugal pre-separation away.
I wonder what modifications one has to make to the top cover, it looks extensive. Certainly more than the stupid trimming it takes to make the black cover fit a 500i. At least there WestCoast Saw now has a filter that does the same thing and fits under the stock hood. Gordy Perrigo is a guy I wish had been around 30 years earlier.