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  1. 12-20-2018 08:01 AM #1
    silvino
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    Another DP option (BullX) just popped up.

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    Looks like a nice piece.

    https://www.hg-motorsport.de/shop/pr...liminator.html
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  2. 12-20-2018 08:37 AM #2
    allerum
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    Im curious to know what the flow difference is between these CAD designed twin pipe downpipes vs Iroz single pipe and which design is better?
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  3. 12-20-2018 09:42 AM #3
    DannyLo
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    Quote Originally Posted by allerum View Post
    Im curious to know what the flow difference is between these CAD designed twin pipe downpipes vs Iroz single pipe and which design is better?
    They both split for driveshaft clearance. The difference is the Iroz DP/MP has the split in the midpipe portion, while this and others like APR split up close to the turbo in the DP because they are designed to work with factory style midpipes. I'm not sure there would be much of a difference in performance between them considering they both at one point do split. Probably marginal, if anything.

    I feel like the location of the Y would affect sound more than anything else.
    Cars: 2012 S5 Prestige | 2003 GTI VRT | 2001 GTI VR6
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  4. 12-20-2018 10:20 AM #4
    allerum
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    Quote Originally Posted by DannyLo View Post
    They both split for driveshaft clearance. The difference is the Iroz DP/MP has the split in the midpipe portion, while this and others like APR split up close to the turbo in the DP because they are designed to work with factory style midpipes. I'm not sure there would be much of a difference in performance between them considering they both at one point do split. Probably marginal, if anything.

    I feel like the location of the Y would affect sound more than anything else.
    I plan on getting rid of the Y and adding in section to the factory exhaust, which is why I was curious, I'd modify the mid pipes to be one pipe. But I was curious to know if someone has done flow testing at the downpipe since some people are running dump pipes and if that affected it.
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  5. 12-20-2018 04:45 PM #5
    Bowser330
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    Quote Originally Posted by DannyLo View Post

    I feel like the location of the Y would affect sound more than anything else.
    Very curious about this, which configuration would make the exhaust have a higher pitch?

    Think BMW M5 5.0L V10

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  6. 12-21-2018 03:38 PM #6
    javbomb
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    Quote Originally Posted by silvino View Post
    Looks like a nice piece.

    https://www.hg-motorsport.de/shop/pr...liminator.html
    Hasn't that been on the website for ages?
    ------------------------------------
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  7. 12-21-2018 03:51 PM #7
    seanix9
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    Quote Originally Posted by javbomb View Post
    Hasn't that been on the website for ages?
    Yep




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  8. 12-21-2018 05:41 PM #8
    JBones81
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    does anyone make a version with hiflo cat?
    2024 RS3 - Glacier White - PPF, Tint, ECS Intake
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  9. 12-21-2018 07:08 PM #9
    tegxsi
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    I believe Milltek makes a catted DP but looks like the mid-pipe section is catted.
    Florett RS3+DS1+034TCU
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  10. 12-21-2018 08:33 PM #10
    silvino
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    I got a notification that it was a new part. Maybe they had one for a different car?

    Quote Originally Posted by javbomb View Post
    Hasn't that been on the website for ages?
    2018 Nardo Gray RS3 IMS710HS turbo, Syvecs ECU/Uni TCU, full IMS fueling, IE intake, IMS FMIC, MMS TB inlet, 4" Unitronic turbo inlet, IE 3.5" DP, BullX catback, AP Racing CP9660 brakes, Wavetrac rear LSD
    Best 1/4: 9.93 @ 140 (full weight/19" PS4s)
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  12. 12-21-2018 08:35 PM #11
    silvino
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    You can config this one to be hi flow cat enabled. 100 or 200 cell versions.

    Quote Originally Posted by JBones81 View Post
    does anyone make a version with hiflo cat?
    2018 Nardo Gray RS3 IMS710HS turbo, Syvecs ECU/Uni TCU, full IMS fueling, IE intake, IMS FMIC, MMS TB inlet, 4" Unitronic turbo inlet, IE 3.5" DP, BullX catback, AP Racing CP9660 brakes, Wavetrac rear LSD
    Best 1/4: 9.93 @ 140 (full weight/19" PS4s)
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  13. 12-23-2018 07:41 AM #12
    comingabriel
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    Quote Originally Posted by JBones81 View Post
    does anyone make a version with hiflo cat?
    Bull-X (Hg-motorsports) can make one, and use an HJS cat you prefer (on DP or single/dual on midpipes). Good people. Not expensive or cheap. Here is a good guy who can assist.

    HG Motorsport GmbH
    Anton Hettel
    [email protected]
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  14. 10-29-2019 11:14 AM #13
    MarcusDubya77
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    Sorry to resurrect, but can anyone confirm if this fits US spec sedans?

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  15. 10-29-2019 12:01 PM #14
    Potshot
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    Per the website, "not suitable for 400hp facelift from 04/2017"

    So I'm pretty sure no

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  16. 10-29-2019 12:06 PM #15
    MarcusDubya77
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    Got it. I couldn't find the website. German internet is a little funky.

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    18 Catalunya RS3 Unitronic Stg 2/TCU Stg 2, APR DP & Intake, CTS Intercooler, 034 MPs, ECE Dogbone (0-60-3.18 : 1/4-11.16 on 98 RON) & 05 S2000 w/ ITB setup
    Gone, but not forgotten- 19 C43 AMG / 12 Abarth (full bolt on) / 07 JHM SC'ed / 08 Evolution X (full bolt on) / 05 M3 Dinan SC'ed / 05 LGT w/ Hybrid Turbo ......and many others!

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  17. 10-29-2019 06:02 PM #16
    Potshot
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    Well actually it was he motorsports, so its not directly from bullx, but.

    https://www.hg-motorsport.de/shop/pr...RoCqroQAvD_BwE

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  18. 10-30-2019 03:10 AM #17
    RS3TP
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    Quote Originally Posted by silvino View Post
    Looks like a nice piece.

    https://www.hg-motorsport.de/shop/pr...liminator.html
    Is this an upgrade that would work on a non tuned 2018 RS3 ... or do you need to be tuned to use this?
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  19. 10-30-2019 02:11 PM #18
    tgalloway1221
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    Quote Originally Posted by Potshot View Post
    Well actually it was he motorsports, so its not directly from bullx, but.

    https://www.hg-motorsport.de/shop/pr...RoCqroQAvD_BwE

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    Do you mean HG Motorsport (not HE)? If so, they are the company that makes the Bull-X exhaust...Bull-X is just the model name, not the brand. HG is the manufacturer.
    Current:
    2019 RS3, Glacier White w/Black Ops, Uni 1+ e85, Iroz FMIC, AWE S-Flo 4.5" intake & midpipes, KW HAS, Malaka throttle body and IC hose and piping upgrade, Xpel PPF & Ceramic
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  20. 10-30-2019 05:38 PM #19
    Potshot
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    Yes it was an autocorrect by my phone. Link is to hg's site. Good to know, I thought bullx was the company.

    Also I was wrong. The link I posted appears to be a different product. Looks like they do make a 2017+ version.

    There would be no good reason to get a downpipe without tuning. If you want sound, just get unitronic midpipes and save hundreds.
    2018 RS3 Black
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