An update: I changed out the 2 brothers M-7 with the P-1 reducer, which is further reduced to the size of a quarter, with the FMF-Q-4. The power seems to be about the same, it is quieter and I like the tone and noise level much better.
Cruising at 6,000-7000 rpm is just purring along and very quite(I still wear ear plugs), I am doing the BB-351 next week so I will see if that affect the noise level much. Not sure if I mentioned it earlier but I put the air box lid back on and removed the snorkel only and that helped out as well. Very happy with the FMF Q-4, if only my previous supplier would have listened to what I wanted I could have avoid the double purchase.