GGB Extreme Mufflers did the job!!!
#31
Originally Posted by GGB
Kent,
What distance away from the boat are you getting those dB numbers at?
Graham
What distance away from the boat are you getting those dB numbers at?
Graham
I just now saw your question.
The law here says 4' back and 4' up, so that's where I measured it.
Our limits are 92db, so I'm in great shape!
Thanks!
Kent
#32
Originally Posted by GGB
No problem, show us some pics when you get them installed. As far as the noise nazi's go, no problem there either!
Graham
Graham
#33
The Extremes have built in flappers. No reversion problem at all with mine.
In fact they are stiffer than the Salisbury flappers, so should prevent reversion better.
Merc's blessing? I never heard of that...
In fact they are stiffer than the Salisbury flappers, so should prevent reversion better.
Merc's blessing? I never heard of that...
#34
Registered
Joined: Jan 2004
Posts: 24
Likes: 0
From: Burks Falls Canada
Originally Posted by hotlavey
Do the GGB's have Mercury's blessing? Wondering about the reversion problem.
Not yet, but we're working on it!
Water getting back into the muffler shouldn't be a problem with the Extreme's built-in flap. The design also allows enough water flow through the muffler to keep it from backing up the exhaust.
Graham




