Did you go with the GGBs? Any feedback?

I have the 5.5" X 4.5" Performance exhaust in my CMI dry pipes. It cut it way back. I don't know if het are actually below legal DB Levels but I get a wave instead of a pull over from he local water patrol.

Just to chime in I installed a set of stainless marine manifolds and dry tails on my 383 stroker SBC. I was thinking the louder the better but once I got it on the water it was WAY too loud, I was having to yell at my wife who was sitting next to me and she still couldn't hear me (most like because the exhaust ��) . Ill be picking up the GGB inserts this week.