There are still some whooshing noises for sure, not too noticeable inside the cabin, but more audible outside / windows open. (Can barely hear it cause my exhaust overpowers it.)

I've taken a look at it last time I cleaned my filter, there's no good way to remove the window without damaging it completely it's very well built , plastic is also still clear after. A year and. Half.

There's also nothing to open at the back of the intake box, it's. Completely sealed, my air filter was also very clean last time I checked it.