[s-cars] Exhausts

[Richard Harris]

The Stromung sure made a difference on my car; however, I am running without
the cat.

I believe the larger down pipe helped a little also...

Richard

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of Robert Myers
Sent: Monday, December 07, 2009 5:25 PM
To: pmische at comcast.net
Cc: s-car-list at audifans.com
Subject: Re: [s-cars] Exhausts


*This message was transferred with a trial version of CommuniGate(r) Pro*

Do the cross sectional area calculation for one 3 inch diameter tube
vs.  two two and a half inch tubes.  The dual system wins out.
9.82 vs. 7.06 square inches.



Bob


At 05:16 PM 12/7/2009, pmische wrote:
>*This message was transferred with a trial version of CommuniGate(r) Pro*
>Has anyone actually done a Stromuuuung v. OEM back-to-back on the dyno?
I'd
>love to see the data.
>
>I will say the Stromung does seem to deliver better throttle response (hard
>to measure that), and there's that unbeatable, unquestionable sonorous
>mellifluousity...
>
>PJM
>
>-----Original Message-----
>From: s-car-list-bounces at audifans.com
>[mailto:s-car-list-bounces at audifans.com] On Behalf Of djdawson2 at aol.com
>Sent: Monday, December 07, 2009 4:58 PM
>To: dlandaeta at gmail.com; alexander_witham at yahoo.com
>Cc: s-car-list at audifans.com
>Subject: Re: [s-cars] Exhausts
>
>
>
>"...and allows for 'real' tuning that requires moving a lot of exhaust
>- of course, it's nice to move a lot of air on the intake side as well!"
>
>
>
>Just to be clear... an exhaust like the Stromung, while they do sound very
>nice, is certainly not required to do "real" tuning or to extract big
>horsepower from the I-5 20v engine.  Dyno tests have proven on more than a
>few occasions that the OE exhaust is not limiting power output, and
>installing an aftermarket unit does not improve power output.  That is
fact.
>
>What you are buying is a cool sound, less weight, and fewer parts.
>
>Dave
>
>
>
>
>
>-----Original Message-----
>From: Douglas Landaeta <dlandaeta at gmail.com>
>To: alexander witham <alexander_witham at yahoo.com>
>Cc: s-car-list at audifans.com
>Sent: Mon, Dec 7, 2009 1:59 pm
>Subject: Re: [s-cars] Exhausts
>
>
>Alexander,
>
>Stromung. Nice quiet low thudding on idle in a confined space, (rattles old
>house windows from the driveway) but cruises very quietly, until full
>throttle boosts just open up and create a low throaty roar that is
>uncomparable for an Audi - almost P-car like. The tuning of the sound is
>excellent and allows for 'real' tuning that requires moving a lot of
exhaust
>- of course, it's nice to move a lot of air on the intake side as well! Do
>the bigger turbo as a package and your 'tuner' can customize chips to pull
>all the performance out of the package. 'll let others describe ther
>versions - Mine's from 2004 or '05, generation IV, I think.
>Yes, the lower attaching bracket is broken at the weld joint, but it gives
>me no trouble and I hear that the latest version with a flex pipe has fixed
>that issue.
>
>Doug
>94 'S4 rolling over 25k miles on the Stromung
>
>On Mon, Dec 7, 2009 at 3:29 PM, alexander witham
<alexander_witham at yahoo.com
> > wrote:
>
> > Hi all,
> >
> > So, I just picked up another UrS6 and I love it. I'd been toying with
the
> > notion of doing exhaust on my previous 2 UrS cars and looked into it
>pretty
> > seriously before backing off due to financial constraints.
> >
> > Well, the urge is back and I thought I would pick your brains as to what
> > the best course of action is. In case it's relevant, the car is
currently
> > equipped with K&N, MTM Stage +, and RS2 exhaust manifold.
> >
> > I'm looking for a pretty aggressive sound that's really going to bring
out
> > the I5's bark. But I don't want that highway droning that's so common
with
> > aftermarket systems.
> >
> > So what do you folks recommend?
> >
> > Thanks,
> >
> > Alex
> >
> >
> >
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