I realized the last post I did really didn’t show off the sound of the exhaust system in depth so here is my redo.
In this one I installed Hindle’s Evolution Noise Reducer (EVNR) and did a few spirited revs to show you how much the piece would muffle the sound of the system as well as a few without it installed:
At idle with the piece installed the dB reader showed noise levels at 71 dB while without it was showing a reading of 80 dB. Now that is significant in my honest opinion especially at tracks that has noise restraints on bikes. When the throttle was hit to almost red line it was only a few dB apart (111 dB with and 113 dB without). From that you can see that at full throttle the system is still quite loud.
You can check them out here: http://www.woodcraft-cfm.com/cgi-bin/commerce.cgi?preadd=action&key=75-0449M