That is not a cyclone. For one, it's too small, 2, it has an intake on the bottom of the siren, 3, that's no ACA stator.
I'd say Elektror siren of some kind. Maybe an L241.
I like snowmobiles and sirens. Who likes snowmobiles. I own a Skidoo Safari 447. Rare engine indeed. Want proof. DM me on discord. Contact ReactorCat#1004