Chrome pipes came in today.... removed the Oringial Cobra's and installed the 6's... I down loaded a decibel meter and measured the original Cobra’s at 102 decibels….. I then installed the 6’s… same 102 decibels…with one difference….. the 6’s are reminiscent of the guttural sounds of the Devil from the Pit of Hell … U Tube video to follow……. I want to put some miles on them first…I will go out for a 100 mile ride tomorrow and then do a video !!!