I have not tested the 1190 system for sound. It's VERY similar in volume/tone to the 1125 system I build though, that was 98 db at idle, 110 at 4500 rpm. I think they were only 3' away though when testing and did not do a ride-by. It didn't help that the exhaust was pointed directly at the mic when they tested, some systems were not built that way and appeared to be quieter when in reality they're not.