[urq] Re: Urq exhaust

[Brandon Rogers]

So are you just replacing the center section?  Sounds like you already have 
the rear...

If so I'd be tempted to just have a muffler shop make that section - minus 
center resonator.  Reattach to your cat and you're good to go.

I'm no expert but I don't see how a 3" center would give any performance 
gain when you have a stock size (2.5") rear muffler...almost seems like it 
could be a detriment going form wide to narrow, so to speak....

Brandon



----- Original Message ----- 
From: "Ben Swann" <benswann at comcast.net>
To: "dd" <david098 at easystreet.com>
Cc: <urq at audifans.com>; <quattro at audifans.com>
Sent: Tuesday, March 29, 2005 6:51 PM
Subject: [urq] Re: Urq exhaust


>I was looking at FLO-943044 3" offset inlet/outlet aligned  but N/A in
> stainless. I did not see the 942544 in the Summit Catologue - details?.
> There is also a FLO-952549 which has outlets on the same side and is 2.5".
> It is hard to find this configuration in a <13" muffler.  It is tempting 
> to
> try a couple of those Tube mufflers that have a 2.5 I/O but only a 3" OD -
> put a couple in line and do away with the curved muffler exits and just
> replace with a curved pipe - I just don't know how it would sound.
>
> I may have to have this done sooner than later and have the local muffler
> shop do this for me - I was going to take the car on a trip before Summit
> could have me the pieces, and then discovered the Muffler broke off just 
> in
> front of the mid-muff - bummer, since I was hoping to string this one 
> along
> a little more.  Now I need it ready in a few days.
>
> One thing I noticed about the stock muffler is the piping starts curving 
> as
> soon as it exits the muffler.  I hope this won't present a problem with
> making a custom one off system.
>
> I wonder how that aluminized steel Exhaust tubing welds and how long it
> lasts?  Also am I gaining anything in going 3" back until the rear section
> which is 2.5" - or is the diameter constrained to the smaller section so
> there would only be marginal gain in flow by making the center section 3".
>
> Also if I can make a factory fit Cat from the Dynatech powercat  or ???  I
> have a 2.5" freeflow cat in my garage.  None of these seem to have oxy
> sensor bungs however, so will likely do with the original for now.
>
> I'm still open to ideas, but need to do something quick - quick as in grab
> the Stebro Center section off "Project GTQ" the 4kq with NG engine.  Is 
> the
> 4kq center section the same as the UrQ?
>
> Ben
>
> ----- Original Message -----
> From: "dd" <david098 at easystreet.com>
> To: <benswann at comcast.net>
> Sent: Tuesday, March 29, 2005 4:42 PM
> Subject: Urq exhaust
>
>
>> Ben,
>>
> I'm just about to order a CAC rear section for my Urq and will need the 
> same
> solution - a replacement for the mid muffler.   It was my plan to buy a
> suitable after market SS  muffler and weld it up  myself.    When I looked
> into this question a year ago (yes, I've been delaying a  new exhaust 
> system
> that long!) I found a flowmaster model 942544 that might work.  I was 
> gonna
> weld up a rear section also but then along came CAC. David Dertin 
> Beaverton,
> Oregon - 83' Mars Red urq
>
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