Maybe apples to oranges but I had an m4 on gsxr 600 and my friend had 2b's on his cbr600 and we were same volume level.
Not sure if that is going to be the same on the N1k. 2b's post good info about db level, hp and weight on their site. I am not sure that m4d does the same.
Not sure if that is going to be the same on the N1k. 2b's post good info about db level, hp and weight on their site. I am not sure that m4d does the same.