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Thread: Exhaust flapper

  1. #1
    Join Date
    Jun 2022
    Posts
    4

    Default Exhaust flapper

    I have recently purchased a 2006 outback and I am looking to replace the rubber exhaust flappers. I measured the inside diameter of the flapper at 3 1/4 inches. There doesn’t seem to be a flapper of that diameter on the market. I have read some forum discussion about modifying a 4 inch flapper. The brand name of the flappers on the boat now is Nautical Rubber, can’t seem to find that company on the internet. Any insight on flappers would be appreciated. Thank you and greetings from British Columbia, Canada.

  2. #2
    Join Date
    Mar 2010
    Posts
    165

    Default

    I’ve got a set off my 2005 Outback. See pics. U r welcome to them. Dm me and we can work out address to get them to u. I’m running a surf pipe so no use for them.


    Sent from my iPhone using Tapatalk
    Pat L
    2005 Outback
    Leonardtown, Maryland

  3. #3
    Join Date
    Mar 2010
    Posts
    165

    Default




    Sent from my iPhone using Tapatalk
    Pat L
    2005 Outback
    Leonardtown, Maryland

  4. #4
    Join Date
    Jun 2022
    Posts
    4

    Default

    I appreciate the offer but those appear to mount differently than mine ? Mine slip over the exhaust tips and are held on with hose clamps. Yours appear to be held on with screws ? Am I correct in assuming this is a difficult part to find in the size I need ? Thanks, Bill.

  5. #5
    Join Date
    Mar 2003
    Location
    Springfield Missouri
    Posts
    3,392

    Default

    Skidim has the standard 3" flapper.
    1998 Mobius
    310 HP PCM
    SOLD

  6. #6
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    1,256

    Default

    I thought the replacements were aftermarket 4" and you cut the pipe to make them fit.

    No way to get 3.5" unless you paid the dealer premium and they no longer carry that size.
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  7. #7
    Join Date
    Jun 2022
    Posts
    4

    Default

    Inside diameter of my flapper (that sounds weird) is 3 1/4 inches.

  8. #8
    Join Date
    Mar 2010
    Posts
    165

    Default

    Yes mine screw in so must be a different design.


    Sent from my iPhone using Tapatalk
    Pat L
    2005 Outback
    Leonardtown, Maryland

  9. #9
    Join Date
    Mar 2010
    Posts
    165

    Default

    Mine mount inside the exhaust tip if I remember correctly. I’ve had them off for a while.


    Sent from my iPhone using Tapatalk
    Pat L
    2005 Outback
    Leonardtown, Maryland

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