need advice on clamp -on mufflers

Reply Subscribe

Thread Tools

08-24-2009 | 05:55 PM

#11

38tg

Registered

Joined: Nov 2004

Posts: 58

Likes: 0

From: wolfeboro nh

imco gattling mufflers worked awesome on my blown 510's

08-24-2009 | 10:17 PM

#12

2112

Registered

Joined: Dec 2003

Posts: 1,991

Likes: 13

From: Socialist Republic of Washington State

Is there a Cubic inch or horsepower limit to the CMIs?
.

08-24-2009 | 11:11 PM

#13

Griff

Charter Member # 55

Joined: Oct 2000

Posts: 20,252

Likes: 2,500

From: Omaha/LOTO

Quote:

Originally Posted by eichhoma

yeah, sorry, I should have clarified.... with nothing on there now it seems easy for water to splash back up in there eassily and go down the risers.... I want to clamp something on that will provide a minimal amount of sound suppression, and also help prevent the possibility of water reversion....

I am basically looking for something like this I think:
http://www.hardin-marine.com/detail~ID~286.aspx

I just dont want to muffle the sound too much.

I am positive that you are significantly over the DB limit even with the Gibson's. I would just leave them on and close them when rafting. Thats what I do. If you really want something like you say, then the Shotguns will be perfect.
www.drewmarine.com

08-25-2009 | 09:54 AM

#14

Brad Zastrow

Registered

Joined: Jun 2001

Posts: 2,303

Likes: 109

From: McHenry, Illinois

Here is a link to the CMI mufflers. Up to 1200 hp.
http://www.custommarine.com/accessories/Silencers.php

08-25-2009 | 09:58 AM

#15

Elite Marine

Banned

Joined: Aug 2002

Posts: 5,658

Likes: 1

From: IL

They wont kill the growl, but they take the "bark" out at idle. Cops wont even look at you. Then on plane they are wide open.

We will help you out with price.

09-05-2009 | 08:30 AM

#16

502ss

Registered

Joined: Aug 2007

Posts: 2,960

Likes: 7

From: Sandown, NH - Sebago Lake Region, ME

Quote:

Originally Posted by eichhoma

Thanks Brad.... I really like the concept to them... I sure would like to hear what they sound like at idle though.... I guess thats the draw back here, I need to take a guess and buy something and try it, and most likely stuck with them if I dont like them.... I'm not really liking that

I just picked up four of the cmi sound elimination mufflers on eBay. I plan to fire on of my 502's today out of the boat and will shoot some video of both without the mufflers and with. Hopefully this will give you an idea of noise level

09-05-2009 | 05:17 PM

#17

502ss

Registered

Joined: Aug 2007

Posts: 2,960

Likes: 7

From: Sandown, NH - Sebago Lake Region, ME

Here you go!

108 DB without mufflers and 84 DB with!

http://www.youtube.com/watch?v=Xy-7UolI1No

http://www.youtube.com/watch?v=ZX0sVVShGc4

09-06-2009 | 03:53 AM

#18

CB-BLR

Chris

Joined: Sep 2005

Posts: 1,426

Likes: 1

From: Snohomish, WA

Quote:

Originally Posted by 502ss

Here you go!

108 DB without mufflers and 84 DB with!

http://www.youtube.com/watch?v=Xy-7UolI1No

http://www.youtube.com/watch?v=ZX0sVVShGc4

Great and informative video's

Thanks,

Chris

09-08-2009 | 08:56 AM

#19

eichhoma

Thread Starter

Registered

Joined: Jul 2007

Posts: 478

Likes: 2

From: St. Louis / LOTO

Quote:

Originally Posted by 502ss

Here you go!

108 DB without mufflers and 84 DB with!

http://www.youtube.com/watch?v=Xy-7UolI1No

http://www.youtube.com/watch?v=ZX0sVVShGc4

GREAT Video!!! thank you so much for posting! I am still torn between those and the drew marine shotguns, mostly becasue I want something smaller..... GREAT demonstration!