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3" Downpipe Guide - would it be useful for anyone?

Discussion in 'A3/S3 Forum (8L Chassis)' started by Welly, Mar 10, 2011.

  1. Welly
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    Welly VX220 SC Driver :)

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    Yo yo all,

    I am test fitting a 3" downpipe at some point over the next 2 weeks on an OEM car. (How pleased I am - NOT)

    I can photograph it all and document it if anyone thinks it would be useful for them?

    Let me know...
    #1
    deeman88 likes this.
  2. Westy
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    Westy Double Dark Side! Diesel & 8P

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    Yes please mate. If I get a 3" TIP next weekend I will soon want 3 inches on the otherside too ;) Is this the XS power one by any chance?

    Depending on what Bills diags show for my exhaust system (as its not right) I might be purchasing a 3" downpipe soon.
    #2
  3. cecilthesausage
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    cecilthesausage ...It's Never Finished...

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    Yep this would be very useful mate... Is it the Xs Power one Welly ?
    #3
  4. Dane
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    Dane Faster than a V12 Q7

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    Defo useful, but i'm gonna get Bill to fit mine as I will probably end up fitting it upside down If i do it. :laugh:
    #4
  5. Welly
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    Welly VX220 SC Driver :)

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    I can neither confirm nor deny this.... It is simply 'a' 3" downpipe.

    :whistle2:
    #5
  6. Hadders
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    Hadders Member

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    I'm paying attention :yes:
    #6
  7. Westy
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    Westy Double Dark Side! Diesel & 8P

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    I'll be having a crack at it myself. Much more satisfaction that way ;)
    #7
  8. cecilthesausage
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    cecilthesausage ...It's Never Finished...

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    Haha:icon_thumright:
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  9. superkarl
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    superkarl MAN OF STEEL

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    definately useful, I've weighed it up numerous times and I'm still unsure which angle and where to attack it from given the lack of space. Can't be easy
    #9
  10. Dane
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    Dane Faster than a V12 Q7

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    I would, but thus far I've pretty much got something wrong every time, which then ends up costing to put right lol, plus Bill has ramps which I imagine will make installation a bit easier.
    Big +1 for doing it yourself but I'm just not well versed enough at the mo.
    #10
  11. Westy
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    Westy Double Dark Side! Diesel & 8P

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    Can you also time how long it takes too Welly. The amount of times I've looked at guides and it looks easy then I start the job and I'm still doing it 4 hours later!
    #11
  12. SiGainey
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    SiGainey Member

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    Yep, would be very useful if you could do a guide!
    #12
  13. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    Be interesting to see how you get the OEM downpipe out because when I was doing mine it was a MASSIVE pain in the ass getting it out lol.

    I have 2 very good guides that I used when i was doing mine if anyone wants them or post a link.
    #13
  14. Westy
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    Westy Double Dark Side! Diesel & 8P

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    Post up what you've got Nath and we'll take a look.
    #14
  15. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    Ok mate, when i get home il post them up for you.
    #15
  16. [Dave B]
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    [Dave B] Rrrrrrrr-tech

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    In a word - YES.
    #16
  17. JS1500
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    JS1500 Howdy

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    T'would be oarsum.
    Welly, Angel of the 8L.
    #17
  18. Welly
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    Welly VX220 SC Driver :)

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    It is that. Three options for getting it out IMO.

    Option 1. Drop the subframe to allow more room to pass it through. This is quite commonly done. Mark the subframe's location before hand to align back up somewhere close.

    Option 2. Drop the front end of the prop off of the transfer box. Not an easy task, how ever is possible. This is how I did mine.

    Option 3. Cut the original into 2 pieces whilst fitted and remove.
    #18
  19. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    I done option 1 and 3 but cut it into 3 parts I think and still was an ass, I was doing it on my drive too though. Once the subframe was dropped and the downpipe cut into 3 parts the flange didnt want to come around the prop, come out in the end though. Would be a good idea to take the OSF driveshaft out too for space. Would you really need to mark the subframe position as it only goes back on in one position.

    Getting the new one on is simple compared to taking the old one out. Fair play to you welly for doing it again, I never want to take an S3 OEM downpipe off again inless I have a ramp.
    Last edited: Mar 10, 2011
    #19
  20. superkarl
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    superkarl MAN OF STEEL

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    Now you've worried me welly, I dropped my subframe the other night to fit a steering rack Bush and didn't mark anything, had no idea there was any alignment, just four simple bolts n goles. Uh oh.




    P.s. Boats n hoes
    #20
  21. Westy
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    Westy Double Dark Side! Diesel & 8P

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    I wouldn't worry too much mate as i'm assuming you'll be getting a 4 wheel alignment done once you've finished changing all the suspension bushes? Whoever does that for you will get it all straight again ;)
    #21
  22. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    I didnt mark anything either as it only goes back on in one position. Only mark the balljoints when ever I change them
    #22
  23. Welly
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    Welly VX220 SC Driver :)

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    Exactly - as long as she drive straight for now then all will probably be well. Just get the wheel alignment checked at some point.
    #23
  24. superkarl
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    superkarl MAN OF STEEL

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    Yeh I thought that, but my mission was to get it straight as poss so I can drive it to awesome. Ahhh well, all over the road il be
    #24
  25. Welly
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    Welly VX220 SC Driver :)

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    LOL, the funny thing is I don't even need one. I'm only doing this so that everyone can buy one as they will actually fit...

    A sucker for punishment.
    #25
  26. Welly
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    Welly VX220 SC Driver :)

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    No, there is movement in the frame when unbolted - not much, but it is likely to move when dropped.
    #26
  27. superkarl
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    superkarl MAN OF STEEL

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    So how long till the group buy on the xs power items welly? The threads closing end of March isn't it?
    #27
  28. Westy
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    Westy Double Dark Side! Diesel & 8P

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    You rock son ;)
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  29. Super Josh
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    Super Josh New Member

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    If it is an XS power one then a few peeps on the TT forum have fitted them and apart from the turbo bolt holes needing to be enlarged and the corner of the flange grinding down to allow them to fit they all failed to pass the emissions test at MOT time :(

    Josh
    #29
  30. superkarl
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    superkarl MAN OF STEEL

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    Seriously top bloke!
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  31. Westy
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    Westy Double Dark Side! Diesel & 8P

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    Welly has been working with them to sort out the above issues so fingers crossed.
    #31
  32. Welly
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    Welly VX220 SC Driver :)

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    Yeah, that was only an interest gauger though. Once I have seen the revised item, and it's been analysed then we can kick that off.

    Shouldn't be too long though, lets put it that way.
    #32
  33. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    I didnt mean when Its unbolted, it does have quite a bit of movement once unbolted and dropped. I mean you cannot slide the subframe on the bolts or anything like you can with the balljoint in the wishbone for adjustment.
    #33
  34. Welly
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    Welly VX220 SC Driver :)

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    Ahhh right, with you now - sorry dude. No, it doesn't move like that, although it will come forwards and backwards small amounts even when the bolts are slackened, and this is enough to throw the geometry out annoyingly.
    #34
  35. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    Ye it is the same, they dont pass from what I have read and experienced myself, want to see if anyone passes on here once they get theres from the group buy. Mine rusted to ***** too after 4 month or so, worse than my 8 year old OEM cat back.

    Welly, next time you talk to XS could you ask them why the lambda hole on the cats have been blanked up so the 2nd lambda gets no exhaust gases on it so you get a fault code on a sports cat.
    #35
  36. Welly
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    Welly VX220 SC Driver :)

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    Yeah, can do, and have in the past. :salute:
    #36
  37. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    Cheer dude. I was thinking they know there cats wont pass and just blanked the hole up, dont know why they blank them up for. Shouldnt get a fault code on a sports cat really.
    #37
  38. Welly
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    Welly VX220 SC Driver :)

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    To be fair, I believe the logic was this:

    Pre facelift S3 don't have a post cat lambda at all. So they set the downpipe up that way. It has the thread for the post cat lambda if you have one, however if you don't then the thing will need to be drilled.

    I agree that it's not ideal - The simplest option being to prove a screw in lambda bung.
    #38
  39. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    Does make sense if it was designed for a pre facelift. Just annoying having a sports cat and getting a fault code.

    The lambda hole on mine is about 2 inch deep and blanked off at the end so even if the hole was drilled out the lambda probe will still not get no gases flowing over it as its about an inch long maybe the probe so brings up the fault code.
    #39
  40. Welly
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    Welly VX220 SC Driver :)

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    Don't get me wrong dude, I totally agree with you, and it has come up in conversation before. I've passed on the info about the cats to the relevant parties.
    #40

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