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Removing the rear cats..... Cause an issue?

Discussion in '2nd Gen. Tacomas' started by Warputer, Aug 10, 2011.

  1. Warputer

    Warputer [OP] Dirt Road Inspector

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    Chris
    Lake Murray, South Carolina
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    Enough modifications to piss the wife off!!
    Getting pipes/muffler tomorrow & wanted to know if you guys have had any issues with removing the rear cats, just before the "Y"? Gas mileage decrease? Warrenty issue? Any check engine light......etc?

    2011 DC 4x4.............Thanks for any input you can give guys! [​IMG]
     
  2. vbibi

    vbibi Well-Known Member

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  3. tegdog

    tegdog Taco Lover

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    It wont cause your check engine light to come on, that will only happen if you pull the primary cats. The computer only monitors the primary cats.
     
  4. whippersnapper02

    whippersnapper02 Well-Known Member

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    You will probably lose some low end power but gain top end power. Also the exhaust might get a tad raspy. It is a V6 after all.
     
  5. Warputer

    Warputer [OP] Dirt Road Inspector

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    Enough modifications to piss the wife off!!
    No vehicle inspections in our back country State.....
    [​IMG]
     
  6. 98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    URD makes a y-pipe that replaces the rear CATs. You will have to put two bungs in though for the rear O2 sensors or you will get CEL's. The one pictured below is for pre-runners.

    [​IMG]
     
  7. rossk35

    rossk35 Do Work Son!

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    No issues. Your exhaust will get a bit louder, so if you still have the stock exhaust you'll end up changing that also because it won't sound that great with the stock muffler.
     
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