Universal vs Direct fit catalytic converters
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Cadillac Catera and Cimarron Forum Discussion, Universal vs Direct fit catalytic converters in Past Cadillac Vehicle Discussion; So my catalytic converter is getting red hot, was told it was plugged/clogged, I was looking at new OE direct ...
  1. #1
    nethic is offline Cadillac Owners Member
    Automobile(s): 1998 Catera
    Join Date
    Nov 2012
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    Universal vs Direct fit catalytic converters

    So my catalytic converter is getting red hot, was told it was plugged/clogged, I was looking at new OE direct fits for the catera, but they are so expensive, would it be better if I cut them out and replace them with universal converters

    Would it be wise to just start lopping off pieces of the exhaust and replacing them with strait pipes or uni catys?
    I don't want to blow my engine or head gaskets from not fixing the catalytic.

    Also what size diameter of exhaust pipes does the catera have? 2.0' 2.5' or 3.0' ? specifically at the catalytic converter area

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  3. #2
    taf9664 is offline Cadillac Owners Member
    Automobile(s): 2001 Cadillac Catera
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    Re: Universal vs Direct fit catalytic converters

    Nethic...ever find the answers to your questions?

  4. #3
    JohnJJO's Avatar
    JohnJJO is offline Cadillac Owners Fanatic
    Automobile(s): 2000 Catera Sport
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    I'm looking for that answer too !!!! I think mine don't have nothing in it. After my temp. test I got on driver side 256F before and 265F after. On pass. side got 270F before cat. and 302F after. Some times feel like car going no where, and poor gas mpg. I would love to know if any body replace cats with universal ones.
    Thank you

  5. #4
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    Use either a good quality direct fit, or appropriately sized universal converter.

    Walker makes some nice exhaust parts.

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