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Rusted front exhaust pipe / resonator (2008 gen 2 Prius)

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by utterprius, Aug 18, 2018.

  1. utterprius

    utterprius New Member

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    I have a 2008 Prius (gen 2) with 170,000 miles. It was bought used so I do not know its history.

    My front exhaust pipe recently rusted through in one area and has disconnected from the rear exhaust pipe (see image), about 6 inches from where it is screwed to the rear muffler.

    As far as I know, apart from this rust, the front exhaust assembly is otherwise fine, i.e. the catalytic converter is functional, no codes, etc.

    To replace the entire OEM front exhaust part (17410-21500) would be very expensive: $1000+ Should I do this?

    As one alternative: If I got an aftermarket resonator only (to connect between the rear muffler and catalytic converter), would it be legal (I am in NY) to have that welded or patched in by a mechanic, in terms of emissions rules?

    Another option, less permanent but much less costly, might be to just use a short exhaust pipe and exhaust clamps to connect the severed pipes across the rusted section. Is that a reasonable option?

    Thanks very much for any thoughts!
     

    Attached Files:

    #1 utterprius, Aug 18, 2018
  2. PriusCamper

    PriusCamper Senior Member

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    Bummer... With all them miles on the exhaust system in a place with so much salt to prevent icing, I'd just patch the busted section and plan to either buy a new exhaust system in the future, or sell the car before that and buy another used Prius in a more southern part of the country where this kind of corrosion is not an issue.
     
    #2 PriusCamper, Aug 18, 2018
  3. padroo

    padroo Senior Member

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    #3 padroo, Aug 18, 2018
    Raytheeagle likes this.
  4. ChapmanF

    ChapmanF Senior Member

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    Something looks suspiciously non-stock about this exhaust already.

    The OEM exhaust components are stainless steel (AFAIK). It kind of looks in the photo as if some of that piping was conspicuously not stainless....

    -Chap
     
    #4 ChapmanF, Aug 19, 2018
  5. PriusCamper

    PriusCamper Senior Member

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    Icy roads and loads of salt? Low grade stainless steel? Or maybe previous owner drove over something that damaged it and they got it replaced with junk?
     
    #5 PriusCamper, Aug 19, 2018
  6. Lucifer

    Lucifer Senior Member

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    My 06 rear pipe died at 60,000 and the donut between the block and exhaust needed replacement.
    Routine maintenance.

    That picture shows a rusted piece, not stock, and saving pennies costs pounds.
     
    #6 Lucifer, Aug 19, 2018
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