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  1. #1
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    Anyone fitted a Milltek?

    Has anyone fitted a Milltek cat back system to an S3? Is there any gain in performance? be it quicker pick up or bhp figure? Is it louder than the standard system? If so by how much? Is it livable on a long motorway run, or does the droneing drive you nuts?

    Can anyone post a picture of what it looks like coming out of the back bumper?

    Cheers

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  3. #2
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    Re: Anyone fitted a Milltek?

    Don't know about the S3 but bloody marvelous on the 1.8 T SPORT.Had the full system put on at AmD last week and a remap done.A little noisier than before but not unbearable and it is good to hear the engine working.Not in the boyracer decible range but enough to turn a few heads if you are into that sort of thing.Very happy with the work done at AmD,need to think about the brakes now,where will it all end? [img]/ubbthreads/images/graemlins/groovy.gif[/img]

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    Re: Anyone fitted a Milltek?

    how much did AmD charge for the exhaust and fitting mate and was it cat back?

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    Re: Anyone fitted a Milltek?

    [ QUOTE ]
    FrOgR said:
    Haven't got one mate but from what i can gather they claim 10 - 15 bhp and it's supposed to be a nice note and not a max power affair and this only kicks in when the revs are up.


    [/ QUOTE ]

    'They' lie.
    10-15 BHP my arse.

    I got precisely nothing...within the tolerances of a rolling road (2%) there was no noticable gain in power. A slight increase in torque - maybe 5 lb-ft or so...but nothing to mess up your shorts about.

    The quality is good...but the fit not so hot. I just can't get mine to fit straight and not bang on something underneath...still working on that banging 2 years later!

    You get a nice exhaust note...a bit deeper but not loud. The cats add a bit more depth and anger to the exhaust note...but the system itself is very pleasant.

    The tailpipes are superb...like stock.

    I noticed a pleasant increase in throttle response...the car seemed to rev up more freely...but of course this did not show on the dyno so it *may* be the placebo effect!

    A nice system? yes.
    Noisy? No.
    Well fitting? So-so...better than some, worse than others.
    Good power gains? No, sorry. Not in my experience.
    Value for money? Yeah...sort of...if you are looking to take tuning further it's a good move...if you want small gains..fair enough. If you expect 10-15BHP you will be very disapointed indeed.


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    Re: Anyone fitted a Milltek?

    [ QUOTE ]
    Ess_Three said:


    'They' lie.
    10-15 BHP my arse.

    I got precisely nothing...within the tolerances of a rolling road (2%) there was no noticable gain in power. A slight increase in torque - maybe 5 lb-ft or so...but nothing to mess up your shorts about.



    [/ QUOTE ]

    Err. Power is Torque * angular_velocity
    You cannot have a gain in torque but no gain in power at the same time.

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    Re: Anyone fitted a Milltek?

    Its a strange one this about the Milltek and whether it gives or doesn't give any power gains. Obviously in Glens experience there weren't any.

    I emailed Milltek (aka Falcon Automotive) regarding the power increase claims which are advertised by tuning companies such as QST and AmD, their response was...

    [ QUOTE ]

    I would agree with the QST claims of 10-15 bhp improvement , Milltek products are all about driveability and we would be disappointed if any customer didn't notice an improvement in both throttle response and turbo spool up after fitting a Milltek .

    [/ QUOTE ]

    AL

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    Re: Anyone fitted a Milltek?

    [ QUOTE ]
    Rob_A3 said:

    Err. Power is Torque * angular_velocity
    You cannot have a gain in torque but no gain in power at the same time.

    [/ QUOTE ]

    Yeah, but the torque and power peaks are not at the same point.
    You can have an increase in peak power and the resulting change in torque at that point (same revs), which can not effect the peak torque figure which could be 2500 revs firther down...and visa-versa.

    Torque is directly proportional to boost on an S3...more boost low down, more torque.
    The S3 turbo cannot move sufficient air up the top of the revs to give the same amount (proportionally speaking) of power gains.


    Which is why modified S3s tend to have a torque peak that tails off - unlike standard - and a power peak much higher up the rev range.

    Spend as long on the dyno as I have and you'll see the pattern showing this.

    It's all about the area under the graph, when all said and done.

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    Re: Anyone fitted a Milltek?

    True ESS_Three. That's why I was careful to say no gain in power at the same time [img]/ubbthreads/images/graemlins/grin.gif[/img]

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    Re: Anyone fitted a Milltek?

    [ QUOTE ]
    The quality is good...but the fit not so hot. I just can't get mine to fit straight and not bang on something underneath...still working on that banging 2 years later!



    [/ QUOTE ]

    I agree Glen the Milltek has never fitted the S3 since day 1 properly I have yet to see a "well hung" (ahem) S3!!! Although I must admit after seeing a Supersprint system on an S3 recently I was impressed, very impressed fitted far better than a milltek.

    [ QUOTE ]
    Milltek are the pipe of choice for almost ALL RS4's if that helps?

    [/ QUOTE ]

    Yes but there ain't really a lot of competition out there when it comes to RS4 exhausts is there!!! (well none as reasonably priced!)

    Basically milltek is a good exhaust for the money but pay a little extra if you are after better fit and finish.

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    Re: Anyone fitted a Milltek?

    I'd always recommend that you get any Exhaust fitted at a specialist, some of the older Milltek's didn't fit quite so good, but nowadays all the one's I've seen fit very well, we're constantly giving feedback to Milltek on fitment.

    On the issue of power gains this is a hard one to demonstrate, the power gains made won't be at the peaks of the bhp and torque curves, one thing to consider is the 30% improvement in flow the Milltek produces, this will mean there will be less back pressure allowing the turbo to spool up quicker, so response times will be better, I guess this will also mean that exhaust temps won't back up to the turbo so much and maybe under bonnet temps might be reduced?
    Alot to discuss on that one I guess!

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    Re: Anyone fitted a Milltek?

    How restrictive is the standard S3 exhaust? Which section is the worst? Has anyone changed the turbo knuckle? (Does the S3 have one? Or is the downpipe bolted straight to the turbo?) Is the downpipe restrictive? How many cats does the car have? Are the centre/rear sections any good? (free flowing) What size bore is the standard exhaust?

    So many questions!! Usually on a Turbo car you can get big/good gains by improving the breathing (On a Mits Evo a full exhaust can give you anything up to 25bhp extra, but from the reports I have read the likes of Miltek give you no bhp gain!! Why is that? Is it no more free flowing that the standard exhaust? Or is it because people only usually change the rear & centre sections, while the sections further forward (down pipe etc) are really the problem? Any thoughts, suggestions, or experiences welcome!

  13. #12
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    Re: Anyone fitted a Milltek?



    Glen reading your comments about the Milltek and not producing big gains what would you say contributed the most (apart from the obvious APR) to your high torque figures?

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    Re: Anyone fitted a Milltek?

    Is anybody with a Milltek exhaust coming to the Rolling Road event in a few weeks at AmD? I'd be interested in hearing a Milltek exhaust 'in the flesh' as I'm thinking of getting one myself...! [img]/ubbthreads/images/graemlins/smile.gif[/img]

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    Re: Anyone fitted a Milltek?

    HI all
    My S3 has a milltek cat back fitted and is a very good fit, only problem that i have is the clamps worked loose after a week and the rear silencer touched the rear valance, took it back to "Scoobiemania" where it was purchased " my local milltek dealer and proprieter is a friend of mine" and here it was adjusted to suit.Still an issue with the clamps so car going back to Milltek this week to be sorted,the stainless steel systems have different expansion rates compared with the standard ones and the millteks fitted to subaru's can stretch up to 2.5 inches when hot so this could be the cause of some problems experienced by others posting here,take it back if you need it sorting and get your supplier to ring milltek if they cant fix it.
    cheers
    [img]/ubbthreads/images/graemlins/groovy.gif[/img]

  16. #15
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    Re: Anyone fitted a Milltek?

    Got a a3 quattro is there a separate system for this or do i fit a S3 item.Was thinking of Miltek but now not so sure.What about my tailpipes,would i need a new rear valance,any advise would be greatly received.Cheers Andy

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    Re: Anyone fitted a Milltek?

    [ QUOTE ]
    ANDYTQ said:
    Got a a3 quattro is there a separate system for this or do i fit a S3 item.Was thinking of Miltek but now not so sure.What about my tailpipes,would i need a new rear valance,any advise would be greatly received.Cheers Andy

    [/ QUOTE ]

    The S3 back box is the Jet type. If you want to buy one then have a word with RichA3Turbo all audi sport members get a 5% discount. [img]/ubbthreads/images/graemlins/smile.gif[/img]

  18. #17
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    Re: Anyone fitted a Milltek?

    Yes but is the quattro t sport system the same bore/fitment as S3 ?

 

 

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