Exhaust Noise Levels - Comparison?

[Sharky1948]

Does anyone know of a reference that has the decibel ratings of the leading exhaust systems out there? It would interesting to have that as a reference for making a choice.

Thanks!

 

[bwalsh22]

No reference, just read an article, since you got me thinking, of a guy with a thunderheader exhaust

Idle - 80 Decibels
Up to 97 Decibels on the throttle

Article - JS Online: 7,500 motorcycles crank up decibel meter readings