Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
Need help with quieting this beast down. >

Need help with quieting this beast down.

Notices

Need help with quieting this beast down.

Old 10-23-2020, 07:25 PM
  #1  
Registered
Thread Starter
 
Join Date: Oct 2020
Posts: 30
Likes: 0
Received 2 Likes on 1 Post
Default Need help with quieting this beast down.

Donít get me wrong. I love a big motor with raw nasty sound. But......family would like to call have a conversation without headphones on. So, what are the best options? Itís a 598 with thunder n lighting exhaust manifolds. I measured it today at 102db. I would like it to be in the 80ís range.
Pulse74 is offline  
Old 10-23-2020, 09:04 PM
  #2  
Registered
iTrader: (1)
 
Join Date: Oct 2013
Location: SF Bay Area
Posts: 2,792
Received 81 Likes on 58 Posts
Default

If you can find a set of GGB inserts they work great with no power loss, and you can still add clamp ons to the tail pipes if need be.
Im in a similar boat (Badabump!). The lady is envious of the ski boats that crawl up to the dock

I went with the 12Ē GGB inserts and all is happy. Itís more of a deep throated growl now.
Baja Rooster is offline  
The following users liked this post:
TomZ (10-26-2020)
Old 10-23-2020, 09:35 PM
  #3  
Registered
Thread Starter
 
Join Date: Oct 2020
Posts: 30
Likes: 0
Received 2 Likes on 1 Post
Default

Anybody have any for 4Ē tips? Thanks
Pulse74 is offline  
Old 10-24-2020, 08:24 AM
  #4  
Platinum Member
Platinum Member
 
cowisl's Avatar
 
Join Date: Apr 2001
Location: East Coast
Posts: 2,913
Received 13 Likes on 9 Posts
Default

You could also go with turn downs

https://teaguecustommarine.com/teagu...-turn-it-down/
cowisl is offline  
The following 2 users liked this post by cowisl:
Bostonirish (10-24-2020), TomZ (10-26-2020)
Old 10-24-2020, 08:57 AM
  #5  
Registered
iTrader: (1)
 
Join Date: Nov 2009
Location: KY
Posts: 3,054
Received 131 Likes on 108 Posts
Default

I changed from Corsa muffler tips to turn downs after repower. Its loud while running but quite at the dock
AllDodge is offline  
Old 10-24-2020, 09:17 AM
  #6  
Registered
Thread Starter
 
Join Date: Oct 2020
Posts: 30
Likes: 0
Received 2 Likes on 1 Post
Default

I need it quieted down at cruise speed
Pulse74 is offline  
Old 10-24-2020, 09:20 AM
  #7  
Registered
 
Bostonirish's Avatar
 
Join Date: Sep 2006
Location: S. Boston MA
Posts: 805
Received 32 Likes on 16 Posts
Default

Originally Posted by cowisl View Post
simple and effective
Bostonirish is offline  
Old 10-24-2020, 10:53 AM
  #8  
Registered
Thread Starter
 
Join Date: Oct 2020
Posts: 30
Likes: 0
Received 2 Likes on 1 Post
Default

Stupid question, do the Gibson bullet clamp ins just go over my existing tips?
Pulse74 is offline  
Old 10-24-2020, 11:05 AM
  #9  
Registered
iTrader: (1)
 
Join Date: Nov 2009
Location: KY
Posts: 3,054
Received 131 Likes on 108 Posts
Default

Originally Posted by Pulse74 View Post
I need it quieted down at cruise speed
Muffler inserts with turn downs
AllDodge is offline  
Old 10-24-2020, 11:41 AM
  #10  
Registered
 
Join Date: Sep 2013
Location: Wisconsin
Posts: 1,373
Received 69 Likes on 36 Posts
Default

Originally Posted by Pulse74 View Post
Stupid question, do the Gibson bullet clamp ins just go over my existing tips?
Yes. Put a set on my 525 boat and they were still plenty load while running but reduced the rap and harshness at idle.
IGetWet is offline  

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.