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  1. #1
    Join Date
    May 2020
    Posts
    4

    Default 2003 Moomba Outback replacement muffler Inlet 3.5" x outlet 3"

    Hi Moomba Family. New to this forum and second season owning my boat. Put it in the water and the muffler has a split as does the inlet hose. Struggling to find a replacement new or used muffler with a 3.5" Inlet and a 3" outlet and a 45 degree on the inlet. Anyone direct me in the right direction to source one or advice on a suitable muffler to swop out solution. So appreciated. Thanks.
    Phil

  2. #2
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    2,053

    Default

    https://www.marinepartssource.com/3-...RoCMNUQAvD_BwE


    Sent from my iPhone using Tapatalk
    2017 Moomba Craz

  3. #3
    Join Date
    May 2015
    Location
    Woodlands/Conroe, TX area
    Posts
    296

    Default

    I pulled them out entirely. I use a piece of SS tubing from the guys at FAE. Since they are water cooled they never even get uncomfortable to touch. I like the sound too but I run the full FAE system.
    2008 Moomba Outback DD resurrection

  4. #4
    Join Date
    May 2020
    Posts
    4

    Default

    Quote Originally Posted by Stazi View Post
    Thank you so much but the issue i have is one end of the muffler is 3" and the other end is 3.5". I have spent hours trying to find one on line.

  5. #5
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    2,053

    Default

    Quote Originally Posted by pipnj25 View Post
    Thank you so much but the issue i have is one end of the muffler is 3" and the other end is 3.5". I have spent hours trying to find one on line.
    Use this to make the transition.

    https://www.motionraceworks.com/prod...QaAv24EALw_wcB


    Sent from my iPhone using Tapatalk
    2017 Moomba Craz

  6. #6
    Join Date
    May 2020
    Posts
    4

    Default

    you dont have photos you can share do you, may be the way to go. Appreciate it. Thanks

  7. #7
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    2,053

    Default

    Use this to make the transition


    https://www.motionraceworks.com/prod...0aAhXHEALw_wcB


    Sent from my iPhone using Tapatalk
    2017 Moomba Craz

  8. #8
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    2,053

    Default

    Quote Originally Posted by pipnj25 View Post
    you dont have photos you can share do you, may be the way to go. Appreciate it. Thanks
    Photo is in the link I posted.


    Sent from my iPad using Tapatalk
    2017 Moomba Craz

  9. #9
    Join Date
    May 2003
    Location
    south east michigan
    Posts
    279

    Default

    If you have ever worked with fiberglass they can be repaired.
    jy

  10. #10
    Join Date
    Jun 2007
    Location
    Calgary Alta Canada
    Posts
    926

    Default I initially replaced one muffler due to splitting at a seam.

    Quote Originally Posted by james yarosz View Post
    If you have ever worked with fiberglass they can be repaired.
    I initially fixed a splitting muffler at the seams, via fibreglass etc, but finally replaced. Bought at ski dim. Problem was that number and model I got from them was wrong. Apparently a batch or two were given different mufflers than what specs said.

    After receiving my muffler, now mufflers I had to deal with what you said, wrong size outlets, and being far away and needing the part at that moment my solution was going to a muffler shop and getting a short piece of stainless 3 pipe then stretching the other end out to 3 1/2 to an exact fit then using fern o plumbing fittings to mate them all together. Works great..

    Sadly boat not available at the moment to get pics to show what I did.
    07 Outback DD

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