As promised, below are the links to the charts that were made by Calsonic doign a sound analysis. Just to reiterate, the first chart on each page is the dba readings that are audible. The 2nd chart is the 3rd Order of the first which should show the engine firing. The 3rd chart on each page is the 6th Order which should be the 1st Harmonic of the 3rd Order...

But do notice the unsual point at 3k revs, which I do not hear.

http://www.flwsoutheast.com/images/steve/Engine/Ear.jpg

http://www.flwsoutheast.com/images/s...ngine/Left.jpg

http://www.flwsoutheast.com/images/s...gine/Right.jpg

 

Oh yea, notice that the readings for the tailpipes don't really show the VTEC chnage. However, you can see it on the driver's ear readings.