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1 7/8 long tube headers vs 1 3/4 short tube

Discussion in 'VF Holden Commodore (2013 - 2017)' started by daves8, Nov 6, 2019.

  1. daves8

    daves8 Active Member

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    I currently have REX 4-1 short tube headers that finish in the standard position.

    I am considering going to proper long tube headers as I think it might give a better note / more beat / throb / note separation.

    am I correct?

    will bigger primaries also assist this?

    I know I will lose low down power but I just want it to sound mint.

    cheers
     
  2. dimetime

    dimetime Active Member

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    You will get a better sound but you will have to also consider getting new cats along with the headers and then a tune or at least your tuner to fix any issues with the cats being in a different position.
    So you could be up for $1600 for headers, $800 for cats and pipes, then another $200 to have your tuner check and turn off engine lights for your o2 sensors being in a different position.
    If your still happy with that, I'd suggest 1 3/4 long tubes with 200cell cats by manta (difilippo)
     
  3. blackve76

    blackve76 Well-Known Member

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    I've got rex headers on my vf with kpm 3" system, also have pacemaker 1 7/8 headers and 3" kpm on VE head/ cam ute sound both the same to be honest. Years ago I changed my cam only VE sedan from pacemaker try Y's to 1 7/8 headers. Tuner overlayed the dyno graphs no lose of power down low, picked up power from 2500 to redline about a 10kw gain.
     
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  4. [paradox]

    [paradox] Active Member

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    Arent the REX headers long tube? yes they finish in the standard location, but im certain their design is still long.
    compared to say a xforce header.

    as a side note, pick up my car with hurricane system on today :cool:
     
  5. [paradox]

    [paradox] Active Member

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    thats what i had slapped on my VE. great sounding system. im hoping the hurricane can hold to it.
     
  6. blackve76

    blackve76 Well-Known Member

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    heard that hurricane can be loud, hopefully you love it.
     
  7. [paradox]

    [paradox] Active Member

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    its all good. :)
    nowhere near as loud as my kpm system was. which is probably a good thing im not in my 20s anymore.
    bimodals definitely help i think
     
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  8. abuch47

    abuch47 Active Member

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    everytime someone gets an exhaust i expect a video
     
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  9. [paradox]

    [paradox] Active Member

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    yeah ill get one :p
     
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