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Discussion Starter #1 (Edited)

With a stethoscope, I can only hear it coming from the valve covers. Take the oil cap off and listen inside, no noise. So it's resonating through the metal.

It is only JUST audible standing above the engine.

I can also hear it out of the exhaust tips.

Check sig for mods. Nothing has been done that others haven't already done. All textbook bolt-ons.

 
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