Noise levels of different exhausts

Does anybody have noise levels of the different exhausts that SIP sells?
I would like to know how they compare regarding dB levels, and if that is not possible
perhaps someone knows by experience which ones are loud and which ones are sillent

Regards

Kristian

What's your configuration, because the db level is not the same.

please notice that the noise level also increases when the pipe 

a couple of kilometers

 

on my scoot after 2000 km the noise level was defenitly higher