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Exhaust mods for Motorsport, possibly Director & Magnum

Discussion in 'VF Holden Commodore (2013 - 2017)' started by duaned, Oct 27, 2017.

  1. White Swan

    White Swan Active Member

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    It's not a hard thing for a manufacturer to add a oil temp gauge to go with the cooler using a binnacle like the HSV's, I'm surprised the cars with coolers don't have them.
    Even the E series HSV had them.
     
  2. monstar

    monstar Naturally as-pirated

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    Through H&M were $650 the pair, but by some spooky allowed trick I just received an eBay notification here. That's why the Genie / Wildcats / Advanced and the Enhanced tri-ys with HFCs for a bit less than a grand seem good value.
    BUT
    They don't fit this application.
    The primaries are good specs and material is fine but the secondary (collector) is compromised to fit the whole shebang into the stock catback flange location. Pisspoor but now you can tick that box and who's gonna know, right?
    What I proposed in another thread is full sized well-made long tube 4-2-1 which do fit this application, mated with perfectly tuned secondaries and stainless HFCs as a package that ticks all the boxes.
     
    Last edited: Oct 31, 2017
  3. 426Cuda

    426Cuda SUBLIME!

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    The pacemakers are starting to.look like the go to me. Bittersweet.
     
  4. duaned

    duaned Active Member

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    Agree, several tuners have told me it's a waste of time fitting the HSV headers as there is only a small gain to be had with these with a tune.
     
  5. MY17DIR

    MY17DIR Active Member

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    Certain tuners are in the business of telling customers that, they then get to sell you a nice pair of headers they supply....




    Surely the HSV headers can be tweaked slightly to clear the engine oil cooler?? I would be putting 200 cell Magnaflow cats on mine anyway.
     
  6. Super Coach

    Super Coach GTS, S, CV8Z, SSVR

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    I like this. I was also thinking the same, doing a cut and weld job on the left HSV header. Im wanting the HSV header because of the factory look it gives with its heat shield etc. Im not interested in aftermarket branded headers/cats.
     
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  7. PSISLE

    PSISLE Well-Known Member

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    Isn’t HSV still really aftermarket too though? Still won’t be standard Holden, not designed by Holden engineers
    I don’t get the obsession with these hsv headers
     
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  8. EternityDre

    EternityDre Well-Known Member

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    I don't get it either, if you're going to modify your engine bay does it really matter?
     
  9. duaned

    duaned Active Member

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    And why go half arsed with the HSV ones when performance is of mind?
     
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  10. monstar

    monstar Naturally as-pirated

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    Just to be clear, HSV don’t make anything they produce cars.
    These Perry / HM tri-y shorties have been around since LS1. Google HM shorties and you’ll see how and why they have become HSV’s most significant (successful) rebranding achievement until the release of those LED tail lights.
     
  11. Ron Burgundy

    Ron Burgundy Well-Known Member

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    Googled hm shorties and look what i found

    http://m2.hm.com/m/fr_fr/femme/cata...erie.genericdevice.html?offset=0&page-size=16
     
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  12. PSISLE

    PSISLE Well-Known Member

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    I wouldn’t even say they produce cars, they modify a base car produced by Holden. Which really makes any part that is not on the car when it leaves the plant aftermarket.
     
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  13. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    According to who?
     
  14. monstar

    monstar Naturally as-pirated

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    Out of all that company's rebranding achievements, which is what they do, the most discussed performance differentiator I found is the HSV exhaust (versus Holden log).
    What rebranded part do you think is more significant than the Perry exhaust? In retrospect the best thing HSV has ever done was those rear LEDs, looks crap now, and that's not in terms of contribution to performance.
    Basically Google as above, everyone into LS tech since the introduction of LS1 here in Australia. The Google results will lead you to discussions on LS1.com.au which used to be the place to discuss LS stuff. Pointless to reproduce dozens of threads over the past decade from another forum here.
     
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  15. crvee8

    crvee8 Member

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    I was told on this forum that hsv triys wouldn't bolt up to the cat on the VF2 as it was different than the VF1. So to make it clear will they work or not?
     
  16. LS1SS

    LS1SS Active Member

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    HSV triys won't bolt up to std log manifold cats,you need specific HSV cats that came with triys due to different lengths,review some past posts here for pics.
     
  17. crvee8

    crvee8 Member

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    So if you get the HSV headers with the big cats that are also fitted stock on a VF1 they will bolt to the factory catback on a VF2
     
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  18. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    According to themselves. Of course the HSV stuff is better than the factory stuff. But there is other stuff out there better than HSV as well.
     
  19. blackve76

    blackve76 Well-Known Member

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    always had pacemakers but on my VE ute the headers do touch speed bumps a bit(she is really low) so on my VF2 I got these as were on special, they line up to factory cat back position
    I've always had pacemakers 4>1s but on my VE ute the 1 7/8ths hit speed bumps sometimes(she is really low) so on my VF2 I got these as on special(think its was $1250 I paid, bolt to std cat back position. They have a EBay store now so can get the ebay 10% deal when it comes up etc.

    upload_2017-11-4_6-45-22.png
     
  20. daves8

    daves8 Active Member

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    I have the same REX 4-1 headers above, and rate them......
     
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