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No rear cats

Discussion in 'Performance and Tuning' started by sr5boy, Jun 14, 2009.

  1. Jun 14, 2009 at 11:20 AM
    #1
    sr5boy

    sr5boy [OP] Well-Known Member

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    Hey guys I was thinking about removing my rear cats on my 4.0. Will this throw a code or make my engine light come on? Also i was wondering if anybody was running a dual flowmaster w/o rear cats. I need help on figuring out whether I want 40 or 50 series. Let me know if you have either and how it sounds w/o rear cats.:mudding:
     
  2. Jun 14, 2009 at 1:39 PM
    #2
    Janster

    Janster Old & Forgetful

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    You might wanna do some research about your local state laws about emissions.
     
  3. Jun 14, 2009 at 3:16 PM
    #3
    sr5boy

    sr5boy [OP] Well-Known Member

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    demudflapped, debadged, relocated the 7-pin, 3'' fatbobs garage lift in front
    haha we dont do that stuff in north florida.
     
  4. Jun 14, 2009 at 4:28 PM
    #4
    Brunes

    Brunes abides.

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    If you remove the rear cats you'll also be losing a pair of O2 sensors- So it will most likely throw a code.

    Best of luck rigging up your pipes.
     
  5. Jun 14, 2009 at 5:30 PM
    #5
    sr5boy

    sr5boy [OP] Well-Known Member

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    demudflapped, debadged, relocated the 7-pin, 3'' fatbobs garage lift in front
    your last name isnt bruner is it?
     
  6. Jun 14, 2009 at 5:32 PM
    #6
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    I believe URD or Doug Thorely makes a replacement y pipe set with the O2 bungs inplace.
     
  7. Jun 14, 2009 at 5:38 PM
    #7
    sr5boy

    sr5boy [OP] Well-Known Member

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    yeah thats what i thought because it looks like they could just cut the pipe right in front of the rear sensor.
     
  8. Jun 14, 2009 at 5:39 PM
    #8
    sr5boy

    sr5boy [OP] Well-Known Member

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    im sorry right behind the second sensor
     
  9. Jun 14, 2009 at 5:44 PM
    #9
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    You could do that. You won't get a CEL as long as both O2's are there.
     
  10. Jun 14, 2009 at 5:44 PM
    #10
    carmellocafe

    carmellocafe Begin With The End In Mind.

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    More holes in the ozone layer??
     
  11. Jun 14, 2009 at 5:45 PM
    #11
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Uh..........no.
     
  12. Jun 14, 2009 at 5:47 PM
    #12
    sr5boy

    sr5boy [OP] Well-Known Member

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  13. Jun 14, 2009 at 5:48 PM
    #13
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Check Engine Light.
     
  14. Jun 14, 2009 at 5:50 PM
    #14
    sr5boy

    sr5boy [OP] Well-Known Member

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    demudflapped, debadged, relocated the 7-pin, 3'' fatbobs garage lift in front
    OOOHHHHH!!!! good
     
  15. Jun 14, 2009 at 5:53 PM
    #15
    sr5boy

    sr5boy [OP] Well-Known Member

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    only a Californian would fall for that Al Gore bullcrap:D
     
  16. Jun 14, 2009 at 5:53 PM
    #16
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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  17. Jun 14, 2009 at 5:58 PM
    #17
    sr5boy

    sr5boy [OP] Well-Known Member

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    yeah your right thats what I want, but Im lookin for a cheap way. Im not spending a whole lot of money on gettin my truck to sound good, because its still gonna sound like a v6.
     
  18. Jun 14, 2009 at 6:01 PM
    #18
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Ok, then the cheap way is to just cut them out and put replacement pipe in there. You could have a exhaust shop do that and weld replacement pipe in there or you could just "scab" it in yourself.
     
  19. Jun 14, 2009 at 6:07 PM
    #19
    sr5boy

    sr5boy [OP] Well-Known Member

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    yeah I think I might know of a guy who does it, i was just wondering if its possible for tacomas because i know you can with a chevy.
     
  20. Jun 14, 2009 at 6:09 PM
    #20
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Yep, as long as you leave the sensor you will be golden.
     
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