[s-cars] Stromung Exhaust

[Serge Filanovsky]

I've had the same Gen III Stromung system on 2 different avants, I have
never heard anything that resembles a drone. I have been very happy with the
sound over the last 4 years. Cruising highway speeds, buzzing around town or
shaving tires at an undisclosed Brooklyn location.

No trouble with the DP, but then again I had mine coated. There is a media
blasting step in the coating process, which is supposed to act as a stress
reliever of sorts. Don't know if that's really true, just that I have not
had issues with the DP.

Posto, keep up the good work!

Serge



> At higher engine rpm there is no drone.
> 
> What is irritating is found only at engine RPMs that occur in high gear
> between 50 and 55 mph.  This particularly occurs with 3" and larger tubes
> where there appears to be some reverberation or reflected waves that
> restricts flow.  Kind of like reflected waves in a coax cable.  A longer
> cable or exhaust could tune where the drone occurs or even eliminate the RPM
> sensitive restriction.  Once you get over that restrictive drone the power
> just frees up.
> 
> It was for this reason I was asking about that particular speed.
> 
> The "BN Pipes" twin tube exhaust from Germany was way less restrictive than
> my larger 3 inch mandrel bent exhaust.  Not only has the hp to the ground
> increased but my wife will ride in the car now.
> 
> Ned
> 
> -----Original Message-----
> From: barmstea at IBB.GOV [mailto:barmstea at IBB.GOV]
> Sent: Wednesday, February 08, 2006 5:40 AM
> To: Ned Ritchie
> Cc: 'S-car List'
> Subject: Re: RE: [s-cars] Stromung Exhaust
> 
> I have not experienced any droning Ned.  Had it as high as 90 so far.
> 
> Brian
> 
> ----- Original Message -----
> From: Ned Ritchie <Q at IntendedAcceleration.com>
> Date: Wednesday, February 8, 2006 3:26 am
> Subject: RE: [s-cars] Stromung Exhaust
> 
>> Please report on the sound and any droning while cruising at a
>> constant 50
>> to 55 mph in high gear.  And secondly if there is any quieting as
>> the speed
>> moves up to 60 mph and beyond.
>> Thanks,
>> Ned 
>> 
>> -----Original Message-----
>> From: s-car-list-bounces at audifans.com
>> [s-car-list-bounces at audifans.com] On Behalf Of Brian Armstead
>> Sent: Tuesday, February 07, 2006 3:58 AM
>> To: S-car List
>> Subject: [s-cars] Stromung Exhaust
>> 
>> Listers,
>> 
>> I recently upgraded to a full Gen IV Stromung system.  Here are my
>> observations:
>> 
>> *The system is extremely well made.  The seams and bends are so nicely
>> done and the system is so attractive, it's a shame it has to hide
>> underthe car!
>> 
>> *The stock system weighs a ton!  The Stromung system is half the
>> weight,which should help handling a bit.
>> 
>> *It sounds great.  I was worried that it would be to loud.  It
>> emits a
>> nice mellow tone.  The car revs much freer now.  Can't wait to put Bob
>> Myer's chip in to really feel and hear the difference.
>> 
>> *Get the extension kit. It you want the gorgeous tips to protrude
>> a bit,
>> get the extension kit Stromung sells.  Otherwise, the tips are about
>> flush with the rear bumper.
>> 
>> *Customer service is great!  Fellow lister Jeff Postupack is the
>> intermediary for Stromung, and offers a very high level of customer
>> service.  Thanks Jeff!
>> 
>> All in all, a very worthwile upgrade for those still on the fence.
>> 
>> Regards,
>> 
>> Brian
>> 93 S4
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> 
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