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Easiest Installed Headers for 3.4L 1st Gen *Suggestions Needed*

Discussion in 'Performance and Tuning' started by christopher425, Jul 10, 2020.

  1. Jul 10, 2020 at 8:01 PM
    #1
    christopher425

    christopher425 [OP] Member

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    Chris
    Alabama
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    2002 PreRunner 3.4L
    Deckplate mod, Plastidip wheels, LED dash, dome & floorboard lights, Pioneer deck, shorty antenna
    Hey Everyone,

    I know there are several threads out there with various recommendations as to which headers people are using, but I really wanted to be specific with what I am looking to do. I've got a 2002 5VZ-FE and am looking to put some headers to get more HP (not sound). With that being said...is there a direct bolt-on header set that doesn't require any cutting/welding??? What all are you running on your rigs? I've looked a little bit at some JBA, Doug Thorley, and TRD kits (I know they're discontinued and pop up on eBay from time to time). Are there any other parts/accessories that I need to consider in order to make the install be worth it? I know that some headers include O2 sims, but I am a little rusty on what that means. Is it a plug-in that acts like an O2 sensor so that you don't get have a CEL come on? I need some education here fellas, since you all know more about these things than I do. Any and all help is appreciated! Thanks, I look forward to your responses.
     
  2. Jul 11, 2020 at 7:55 AM
    #2
    Jon64l

    Jon64l Well-Known Member

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    I had to cut my cross over pipe to get it out. Once cut it came out perfectly, factory should have had a flange here.

    I haven't installed just headers as a performance mod, but I've had a truck with SC and headers. I honestly don't think the headers are worth the 10hp for the money/pita of install.

    I would recommend just saving up for the blower/fuel mods. Best bolt on option for these trucks. Easier to install with much better gains.
     
    christopher425 [OP] likes this.
  3. Jul 11, 2020 at 9:21 AM
    #3
    christopher425

    christopher425 [OP] Member

    Joined:
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    Male
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    Chris
    Alabama
    Vehicle:
    2002 PreRunner 3.4L
    Deckplate mod, Plastidip wheels, LED dash, dome & floorboard lights, Pioneer deck, shorty antenna
    My Taco has like 245k on it, so I'm concerned that a SC would be a little too much stress on it at this point. Am I wrong with believing this?
     
  4. Jul 11, 2020 at 10:28 AM
    #4
    Jon64l

    Jon64l Well-Known Member

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    If the engine is in good condition you should be fine. There is one dude on here with 600k miles and SC.

    I have 230k on my 96 and boosting 10.5psi with a turbo right now. I did have it up to 12 with the blower and turbo. Its all in the tune.
     
    christopher425 [OP] likes this.
  5. Dec 11, 2020 at 11:18 PM
    #5
    willie64

    willie64 Willie64

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    BEND OR
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    144 watt led lights on front 36 watts x2 led on the back, cb, Kenwood ham, icon 3" lift, 285/75/16 Fierce Attitude tires, JoeZilla sliders, 4x innovation rear bumper, ARB front bumper. Snorkel. On the workbench: more stuff I can't afford.
  6. Jan 27, 2021 at 2:16 PM
    #6
    2004Taco

    2004Taco Well-Known Member

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