best option to quiet down a thru-hull exhaust?

chartersj

Petty Officer 1st Class
Joined
May 14, 2013
Messages
281
good day, i came across a good deal on a baja 232 with a 454 merc. Most have a switchable exhaust but this one has straight thru-hull and no y-pipe. The rcmp are cracking down on loud boats here and was wondering what people have been doing to quiet them down. I would not be pulling the engine to install a y-pipe, even though i know that would be the best way. What type or combination of mufflers/tips would be best?
 
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HT32BSX115

Supreme Mariner
Joined
Dec 8, 2005
Messages
10,083
Howdy,


I have a similar problem if I decide to re-install my Capts Call system I removed when I pulled the 460 King Kobra from my FourWinns 211 Liberator and installed the Merc 454/Bravo.

I intentionally didn't re-install it because the thru-hulls were SO LOUD and I stuck with the Y-pipe exhaust.

You could get your hands on a Y-pipe and just go back to "Thru-prop"......but you'd have to pull the engine to do it.

Your other choice would be stainless steel exhaust silencers like the following from Corsa. http://www.corsamarine.com/exhaust-silencers.aspx

But they're not going to be cheap.
 

camalot

Petty Officer 2nd Class
Joined
Jul 24, 2012
Messages
144
Wet mufflers or as some call them water trap mufflers, they work really well
 

bilge rat jim

Petty Officer 1st Class
Joined
Jun 28, 2012
Messages
330
Exhaust tips that that angle downwards- deflects the exhaust (and noise) toward the water.
 

Bondo

Moderator
Staff member
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Apr 17, 2002
Messages
70,513
good day, i came across a good deal on a baja 232 with a 454 merc. Most have a switchable exhaust but this one has straight thru-hull and no y-pipe. The rcmp are cracking down on loud boats here and was wondering what people have been doing to quiet them down. I would not be pulling the engine to install a y-pipe, even though i know that would be the best way. What type or combination of mufflers/tips would be best?

Ayuh,.... Then find another boat to buy,.....

The only way to Quiet the exhaust, is dump it underwater,....
 
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