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Twin 3 inch Difillippo on auto

Discussion in 'VF Holden Commodore (2013 - 2017)' started by daves8, Oct 7, 2019.

  1. Brown Dog

    Brown Dog Member

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    I may be wrong, but most of the drone issues seem to be with the 6.0L rather than the LS3 ?
     
  2. Milo 6.0

    Milo 6.0 Active Member

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    Daves8 did you end up getting the dpe zorst and are you happy with it?
     
  3. daves8

    daves8 Active Member

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    Not yet....... am leaning toward either the Walkinshaw stepped catback, or the DPE 2.5.

    not wanting drone, but also looking at logistics of having system posted then fitted, or a walkinshaw supplier fitting as this is included in cost
     
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  4. daves8

    daves8 Active Member

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    Got lucky and found a brand new Walkinshaw catback with tips for $1300 (about half price for what a Walkinshaw dealer will charge)

    can’t wait to put it on!
     
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  5. Milo 6.0

    Milo 6.0 Active Member

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    Will that match up to your extractors or do you need to modify it?
     
  6. daves8

    daves8 Active Member

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    Yes, I have the REX 4-1 by GM Motorsport, they finish in standard position
     
  7. eman1

    eman1 Active Member

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    Post a vid when its done, I'm considering changing from my 3" Hurricane system to DPE/walkinshaw. I have a cam and the hurricane sounds good but I think my preference is the DPE.
     
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  8. Murdoch

    Murdoch Active Member

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    I have a LS3 wagon.
    It was the full DPE set up. Extractors all the way through.
    It's the 3 inch stepped to 2.5 inch.

    I don't hear drone on mine that's noticeable anyway.
    It is a deep sound, and not loud on normal driving. Flog it and it's load yes, but all of them are.
    If you can I would suggest taking a car with one on it for a drive. Then have the owner drive around with you maybe on the side of the road so you can hear what they sound like from that perspective also.
    You tube clips don't do any exhaust sounds any justice to be honest
    I personally like them and find it the best sounding one I have ever had. But I'm not into the loud raspy sounding ones, but everyone is different.


    People have mentioned in earlier threads about the baffling coming loose and rattling. I have had this on two occasions now. Both fixed under warranty. They replaced the whole cat back section twice.
    I was getting a rattle under soft load at about 1300 rpm.
    As its the W pack, there was no issues with warranty not kicking in.

    The second occasion the rattle returned, the shop actually had a full 3 inch one there and put it on my car as I was thinking about upgrading since a new one was needed anyway.
    I found it a bit too loud and had some drone.
     
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  9. daves8

    daves8 Active Member

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    I had the Walkinshaw system fitted today....

    I am not blown away at the sound, actually sound fairly similar to my manta. It is possibly a bit deeper, possibly some more note separation at certain rev ranges, however I feel like I have lost a lot of low end power, possibly due to less back pressure with the bigger cat pipes and front section (3 inch vs 2.5)

    perhaps I need my tune touched up.

    will wait 1000kms for the system to bed in to give full commentary, but I think it will be better than the manta
     
  10. Milo 6.0

    Milo 6.0 Active Member

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    Spewin,chuck the manta back on:)
     
  11. abuch47

    abuch47 Active Member

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    back pressure is a myth but yes the 2.5inch is better for low to mid range and the 3 inch better for mid to top end power n/a LS
     
  12. daves8

    daves8 Active Member

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    what ever has changed I have a lot less low end. Maybe this flows better, and I need my tune updated.....
     
  13. daves8

    daves8 Active Member

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    I have kept it..... if I don’t love the Walky after 1000kms I’ll put it back on and sell the Walky.
     
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  14. Milo 6.0

    Milo 6.0 Active Member

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    Im just having a dig mate,hope you get it sorted.
     
  15. abuch47

    abuch47 Active Member

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    been keen to hear both systems idle and rev out.
     
  16. WW-VFSSVR

    WW-VFSSVR New Member

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    Got a 3 inch Difillippo cat back on my 2016 SSVR yesterday at a certain Melbourne mod specialist, went for a drive along the great ocean road today, could not be happier with it. No drone, great sound but only one small downside, no more crackle.

    Very happy overall, happy with the install, happy with the sound and if anything it is quieter at 100km/hr than the stock with the relay removed.

    i have chosen to not tune or do anything else with the car as I’ve been there before and love the way it drives now. Just needed it to sound a little more like a V8 should.
     
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  17. dimetime

    dimetime Active Member

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    Once it builds up a bit of carbon I'd say you'll get some crackle back.
     
  18. vr304

    vr304 Well-Known Member

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    That can also be manipulated in the tune
     
  19. daves8

    daves8 Active Member

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    Interesting......

    I am about to put my manta back on and sell the Walky / difilippo system, just prefer the manta note
     
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  20. eman1

    eman1 Active Member

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    Price? Although I'd love to hear it before I make the same mistake haha
     

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