Message posted by Michael Stammberger on October 23, 2013 at 12:01:23 PST:

it was probably supercharged (the machine sounded like it for sure) but even after checking MANY youtube videos of supercharged raptors I cannot hear a similarity of sounds, the sound I heard this night was very unique (I never heard it before)...maybe Billy is able to provide you guys with a sound sample since he heard the same sound it seems.

In Reply to: Siren sound posted by Kurt on October 23, 2013 at 4:02:40 PST:

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