Popping in...
Frank probably already covered thisa, But... Frank put a milled and radiused
top stage One on the bench with a round "side draw" style filter element with
an enclosed housing next to a non-milled top TB. The milled top (no airhorn)
TB out flowed the airhorned unit by about 5% as I remember... With a top draw
air hat (KB style etc.) you'd see less of a difference. It looks kinda trick
too!
Bruce
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