Re: how to make an engine quieter/stealth
I've experimented with the cover on and off and I can't discern any difference. The stock air cleaner only draws in air through the four tubular openings at the bottom and the cover I put on doesn't effect them, only the thin plastic housing. My theory is the intake noise is amplified somewhat by the stock cover. Keep in mind that my idea doesn't make the engine silent, just a little quieter, especially from the intake noise.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"