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Magnaflow Catalytic Converter Experiences?

Discussion in '1st Gen. Tacomas (1995-2004)' started by taco57, Apr 17, 2019.

  1. Apr 17, 2019 at 6:24 AM
    #1
    taco57

    taco57 [OP] Well-Known Member

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    All,

    Still doing research on my option for replacing my stolen catalytic converter. It is the second cat I am replacing and I have heard generally good things about Magnaflow. I currently have a test pipe installed.
    I am entertaining the idea of getting the weld in type specific to my truck, not universal, and having a local shop weld it in. The other option is the direct bolt-in replacement at considerably more money.
    Will the cat install quiet my exhaust down from the current straight pipe, will it act like a resonator of sorts? I will welcome that if that is the case. I did read one review where the Magnaflow cat was loud, what could that mean? Any issues with the pesky downstream O2 sensor not getting along with Magnaflow?

    Thanks in advance.
     
  2. Apr 17, 2019 at 6:29 AM
    #2
    Xbeaus

    Xbeaus Well-Known Member

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    Black hills South dakota
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    Toytec coilovers. Height adjustable Bilstein's. 265/75/16 MT. TRD wheels. Rebuilt r150f. Marlin clutch kit. All kinds of new parts...
    Anything will quiet it down if you are replacing a test pipe. I have heard of others having check engine lights on with anything besides OEM. The Magnaflow is louder than stock because it's a High Flow Cat. I had a full Magnalfow set-up on an 01 Cherokee I had and it sounded decent. Anything is better than that test pipe IMO. Again - you could have some problems with your O2 sensor with a higher flow Cat. Just a gamble I suppose.
     
    CS_AR likes this.
  3. Apr 17, 2019 at 6:43 AM
    #3
    taco57

    taco57 [OP] Well-Known Member

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    Interesting that it is a high flow cat, did not know that. I want to quiet the drone at 55 MPH. I actually am starting to get the 0442 code which is efficiency of second cat code. Oddly enough I have the URD O2 simulator installed which took care of the light for a while. I suspect the O2 sensor is bad now too.
     
  4. Apr 17, 2019 at 6:53 AM
    #4
    se7enine

    se7enine MCMLXXIX

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    I have one on mine. It's a quality unit. It will be quieter than a test pipe but it isn't a muffler so don't expect much. Mine looks as good as the day I bought it and has already out lasted the Flowmaster that I originally had. That thing only lasted a year, complete rubbish. I recommend Magnaflow.
     
  5. Apr 17, 2019 at 6:54 AM
    #5
    taco57

    taco57 [OP] Well-Known Member

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    Great, love to hear the positive experience. Is yours the weld-in type?
     
  6. Apr 17, 2019 at 6:54 AM
    #6
    se7enine

    se7enine MCMLXXIX

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    No, bolt in.
     
  7. Apr 17, 2019 at 6:59 AM
    #7
    Styx586

    Styx586 Well-Known Member

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    I had a Magnaflow cat welded in after my factory cat was stolen off my ‘01. The check engine light comes on once or twice a year and sets a P0420. I carry a code reader in the truck and just clear it. Sound wise I noticed no change from the factory cat.
     
  8. Apr 17, 2019 at 7:32 AM
    #8
    taco57

    taco57 [OP] Well-Known Member

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    How long have you had it? How does it look now, holding up well including welds?
     
  9. Apr 17, 2019 at 9:15 AM
    #9
    Styx586

    Styx586 Well-Known Member

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    I’ve had it for about 4 years now... looks just fine, about what you’d expect out of an exhaust component. Welds are good no leaks...
     
  10. Apr 27, 2019 at 3:52 PM
    #10
    taco57

    taco57 [OP] Well-Known Member

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    Installed my new rear cat and Denso O2 sensor. Bosal brand cat as that is my cat back exhaust which has served me well for 10+ years. It is quieter, less drone at certain speeds. Plus, I am now on record of doing my small part in keeping the air clean. HA!
    I will most likely remove my URD simulator next and perhaps sell it.
     

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