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cat delete or not

Discussion in '2nd Gen. Tacomas (2005-2015)' started by 06SR5canada, Aug 19, 2011.

  1. Aug 19, 2011 at 5:58 PM
    #1
    06SR5canada

    06SR5canada [OP] Well-Known Member

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    2ndary air filter removed, flowmaster 40
    Hi guys, just wondering what you all think of ditching the rear cats? from my understanding this will not throw a cel.

    am i asking for any negative effects performance, reliability, or mpg wise?

    where i live there are no emission laws.

    mostly looking for more growl, already had the muffler replaced with a deltaflow.

    just wondering what you all think of doing this and any comments from people that already have

    thanks.
     
  2. Aug 19, 2011 at 6:03 PM
    #2
    Warputer

    Warputer Dirt Road Inspector

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    Lake Murray, South Carolina
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    A little lift & some extra steel....
    I had the same questions & I did not do it due to an overwhelming response that I would lose low end power. So here I am with an aftermarket muffler that I can barely hear....[​IMG]
     
  3. Aug 20, 2011 at 9:17 AM
    #3
    06SR5canada

    06SR5canada [OP] Well-Known Member

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    i had a chat with "memario" who took his cats off and said he couldnt really notice a lack of power in low rpm.....
     
  4. Aug 20, 2011 at 9:22 AM
    #4
    kmok

    kmok Plastidipped ma Hootus!

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    How about some headers?
     
  5. Aug 20, 2011 at 9:40 AM
    #5
    Fightnfire

    Fightnfire Recklessly tired

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    Softopper, Bilstein 5100's @ 1.75 in the front, TSB Rear, 17x8.5 Lvl 8 Guardians, 265/70-17 Goodyear Wrangler Duratracs, Scooped, Anytime fog mod, Osram Nightbreakers, LED Interior lights, Debadged, Painted valance, Removed rear head rests, De-flapped, Hidden Hitch installed, Weather Techs, Flyzeye'd A/W/A, Cover Kings,... oh and the hot wife mod.
    I wish I could delete my wife's cat, actual cat btw. It would cause a total loss of low end and high end "power" tho as I wouldn't be getting any for a while.
     
  6. Aug 20, 2011 at 12:18 PM
    #6
    Chris(NJ)

    Chris(NJ) Well-Known Member

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    Dont bother
     
  7. Aug 20, 2011 at 12:19 PM
    #7
    Stubbs95tacoma

    Stubbs95tacoma Well-Known Member

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    mine got stolen and i now get 9 mpg sooooo if you wanna sell yours to me id be happy :D
     
  8. Aug 20, 2011 at 12:59 PM
    #8
    06SR5canada

    06SR5canada [OP] Well-Known Member

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    dont the DTLT eliminate 2 cats?
     
  9. Aug 20, 2011 at 4:49 PM
    #9
    JKD

    JKD Well-Known Member

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    I don't really see the point any more. Modern catalytic converters are not restrictive enough to make a difference.
     
  10. Aug 21, 2011 at 1:31 AM
    #10
    Leer

    Leer Well-Known Member

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    I Removed mines, I'm getting 23-34 mpg highway and 20-21 mixed town/highway. that's with my flowmaster and a drop in k&N and secondary filter removed.
     
  11. Aug 21, 2011 at 4:18 AM
    #11
    buddywh1

    buddywh1 Well-Known Member

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    Sounds great! congratulations!
     
  12. Aug 21, 2011 at 5:51 AM
    #12
    Raylo

    Raylo Well-Known Member

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    What he said.

     
  13. Aug 21, 2011 at 7:43 AM
    #13
    06SR5canada

    06SR5canada [OP] Well-Known Member

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    ok how about 3 cherry bombs all welded together?
     
  14. Feb 12, 2012 at 12:01 PM
    #14
    Yota4me

    Yota4me Active Member

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    charocal filter delete/kn intake, rear cat delete. horn mod, 20% tint front windows, bull bar, M1 Full Syn, black plasti dip emblems. Next up aero turbine 2525xl muffler
    dont listen to these hippies, I took of my rear 2. little more growl, im thinking of taking off the front 2 off and just putting 1 high flow 1 in the middle of the exhaust (like 1st gen 3.4 v6), or if I move to a non commie area ill take them both off.
     
  15. Feb 12, 2012 at 12:28 PM
    #15
    06SR5canada

    06SR5canada [OP] Well-Known Member

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    ya 0 emission testing here if it has 4 wheels and an engine you can drive it
     
  16. Feb 12, 2012 at 12:35 PM
    #16
    elmo7

    elmo7 Easily Replaceable Member

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    Then why bother asking. Just cut that shit off from the header back and get some serious loud sound.
     
  17. Feb 12, 2012 at 1:17 PM
    #17
    Fractured

    Fractured FPS-a-holic

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    LOL

    They weren't saying don't do it due to emissions, they were saying it from a low end power stand point.:smack:

    It will throw a CEL depending on what emissions package your truck came with. You might need to put a resistor where the rear 02 sensor is to trick the ECU.
     
  18. Feb 13, 2012 at 1:54 PM
    #18
    JR616

    JR616 Well-Known Member

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    i did it, felt no lack in power or loss in mpg. it also sounds great!
     
  19. Mar 5, 2014 at 7:34 PM
    #19
    TACO FOR LIFE

    TACO FOR LIFE Well-Known Member

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    did removing the back cats throw a check engine code on your truck?
     
  20. Jan 12, 2016 at 5:47 PM
    #20
    Nitrofish88

    Nitrofish88 Active Member

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    Only wheels and tires... For now... Muahahaha!!!
    Also curious... did it???
     
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