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Headers & Y-pipe

Discussion in 'Underdog Racing Development' started by ST3VE, Feb 18, 2014.

  1. Feb 18, 2014 at 12:04 PM
    #1
    ST3VE

    ST3VE [OP] Well-Known Member

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    Check my build page, ya filthy animal!!
    I have a bad cat off of my header so I am just going to replace the headers and y-pipe. I am looking at the "pipe bomb" and have not made up my mind on the headers. I see a lot of great things about the JBA headers, but would the JBA headers and the Doug Thorley pipe bomb go together?

    Obviously the DTLT and the pipe bomb would go together but I see a lot of people having the issue with the DTLT cracking? If you search the forum, most times you find them for sale instead of someone giving a review. That kinda turns me off of them.
    I also hear that if you go with the long tube then you will sound kinda ricey, which is no bueno. That is the reason I am going to get the y-pipe as well. I like the idea of going through URD because I am also in MD and I can imagine shipping would take too long to get to me.


    discuss..
     
  2. Feb 18, 2014 at 3:35 PM
    #2
    ST3VE

    ST3VE [OP] Well-Known Member

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    Does anyone know if the Doug Thorley header cracking issue is still around?
     
  3. Feb 18, 2014 at 4:34 PM
    #3
    AR15xAR10

    AR15xAR10 Aka: "RainbowPuke"

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    No. (Free bump)
     
  4. Feb 18, 2014 at 4:43 PM
    #4
    TonkaToyTaco

    TonkaToyTaco Hope you can run faster than 965 FPS

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    Don't do it. Regardless its going to make it ricey. If anything get a new CAT and a set of short tube headers, no long tube and no y pipe that equals rice and you should already know this.
     
  5. Feb 18, 2014 at 4:46 PM
    #5
    AR15xAR10

    AR15xAR10 Aka: "RainbowPuke"

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    If i was doing it. I would never get rid of the cats...i would do JBA or URD shorty headers and stock y-pipe with an after market cat-back

    My $0.02
     
  6. Feb 18, 2014 at 4:47 PM
    #6
    TonkaToyTaco

    TonkaToyTaco Hope you can run faster than 965 FPS

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  7. Feb 18, 2014 at 4:57 PM
    #7
    ST3VE

    ST3VE [OP] Well-Known Member

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    I didn't know URD made a shorty header
     
  8. Feb 18, 2014 at 4:57 PM
    #8
    AR15xAR10

    AR15xAR10 Aka: "RainbowPuke"

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    I tink dey do...

    Edit: well, sorry about that. I thought they did but i guess they only have long tube...shit
     
    Last edited: Feb 18, 2014
  9. Feb 18, 2014 at 5:08 PM
    #9
    ST3VE

    ST3VE [OP] Well-Known Member

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    The JBA shortys say that minor welding is needed? What would you need to weld?
     
  10. Feb 18, 2014 at 5:08 PM
    #10
    ST3VE

    ST3VE [OP] Well-Known Member

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    JBA Cat4ward® Headers are the perfect upgrade for today's emissions controlled cars, trucks and SUVs. Engineered with heavy duty features and patented technology, these headers deliver serious performance gains without compromising your vehicles emissions equipment. Bolting (minor welding required when installing headers on a 4.0 liter 1GR engine) on a set of JBA Cat4ward® Headers increases your engines breathing ability and overall efficiency. The result is a significant increase in horsepower and torque throughout the RPM range. You will also improve the throttle response and in some cases your vehicle's fuel economy.
     
  11. Feb 18, 2014 at 5:24 PM
    #11
    ST3VE

    ST3VE [OP] Well-Known Member

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    So after reading further my best bet is JBA headers welded to new cats and stock ypipe.
     
  12. Feb 18, 2014 at 5:27 PM
    #12
    AR15xAR10

    AR15xAR10 Aka: "RainbowPuke"

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    I thought they just bolt on? I have absolutely no idea what would need to be welded?
     
  13. Feb 18, 2014 at 5:29 PM
    #13
    DOUBLLD

    DOUBLLD Well-Known Member

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    I would do the urd true equal length runner headers and keep stock mid pipe
     
  14. Feb 18, 2014 at 5:35 PM
    #14
    ST3VE

    ST3VE [OP] Well-Known Member

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    That would delete the cats and I would need the o2 simulator then... correct?
     
  15. Feb 18, 2014 at 5:57 PM
    #15
    DOUBLLD

    DOUBLLD Well-Known Member

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    Yes you would I have one that I can sell you I dont need it anymore ill sell it for cheap
     
  16. Feb 18, 2014 at 6:03 PM
    #16
    ST3VE

    ST3VE [OP] Well-Known Member

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    I'll keep it in mind. I have your number. I'm still weighing my options on what I'm going to do about this bad cat.
     
  17. Feb 18, 2014 at 6:06 PM
    #17
    DOUBLLD

    DOUBLLD Well-Known Member

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    Just pull the manifold put and shove a broom handle through it until it's all gone then repeat to the other side and then o2 sim and done lol. Or ship them to me ill cut the housing open remove the cat material then reweld it shut
     
  18. Feb 18, 2014 at 6:16 PM
    #18
    hitmans.army

    hitmans.army Just a guy.

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    I am running DTLTs with an AT 2525XL. At idle to about 2000 rpm, it sounds good. I have even had people say that they didn't know Toyota put a V8 in Tacoma's. But at WOT and high rpm, it sounds like a pissed off weed wacker. I have only had one issue with the O2 sims, one of the plugs broke, but it was an easy fix.
     
  19. Feb 18, 2014 at 6:24 PM
    #19
    ST3VE

    ST3VE [OP] Well-Known Member

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    Yeah. That's the sound I don't want. I've been reading and finding out that with the pipe bomb you will get rid of the high pitched sound.
     
  20. Feb 18, 2014 at 6:26 PM
    #20
    ST3VE

    ST3VE [OP] Well-Known Member

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    At the end of the day I want it to sound throaty and deep. Not high and ricey.
     
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