Painful low frequency drone/pressure in cabin

[Jack90210]

I just had a new OEM exhaust installed and had a major boom at idle. Helpfully, I have an app on my phone (that I use for sound gigs etc.) that shows frequency response of sound, so I measured the sound and bought the exhaust weight for the appropriate frequency (39hz).

This doesn't sound like your problem, but maybe it'll be helpful anyway.

 

[LJE]

I just had a new OEM exhaust installed and had a major boom at idle. Helpfully, I have an app on my phone (that I use for sound gigs etc.) that shows frequency response of sound, so I measured the sound and bought the exhaust weight for the appropriate frequency (39hz).

This doesn't sound like your problem, but maybe it'll be helpful anyway.


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Yup - I've got several apps to break down audio frequency (and measured vibrations via the phones built in accelrometers). That's part of the reason I'm confident that in this case it's not the 40hz 'exhaust boom at idle' that the 100 series can have.

 

[Live to Ski]

This is the first I've ever heard or seen of this!

ditto...