[s-cars] Cat back flanges

Konstantine Bogach kbogach at comcast.net
Wed Oct 26 08:33:52 PDT 2011


Thanks, Joshua.  I crawled under the car and realized that I can not 
slip a flange on the pipe if I disconnect the pipe by taking the braces 
on the middle of it  off.   Yes,  it looks like it leaves me only the 
approach you suggested.  Now I just need to know to know bolt pattern on 
the flange to find the right one.  Will call a dealer too.
Can someone, if you happen to have it off a car,  measure the distance 
between bolt holes on the triangular cat flange?
I have one off type 44 but I don't know if it is the same.

Thank you.
Konstantine.

On 10/26/2011 8:25 AM, Joshua Van Tol wrote:
> One solution I haven't see mentioned (and the one I used) is to get a
> new flange (the weld on kind) cut it in two, slip it around the pipe
> in question, and weld it back together. It works great, and if you can
> MIG weld, it's pretty easy. Any exhaust shop or welding shop should be
> able to handle this with no trouble at all.
>
> On Tue, Oct 25, 2011 at 10:07 PM, Konstantine Bogach
> <kbogach at comcast.net>  wrote:
>> Tom, I saw one on Market place, and it gave me an idea... to call a dealer
>> (excuse me).   The exhaust for sale, by the way, does not have flanges.
>>   Rusted away probably.   Those goes first as far as I know   .... I just
>> remembered that I have old  cat from type44.  I can cut the flange from
>> there and use on the pipe side, if they same size with C4's flange.
>> I still find it hard to believe that this list is not on top of this matter.
>>   Folks restores little plastic trim pieces... everything on these cars,
>> refusing to pay for new one and having fun from doing that.   Or maybe I am
>> the only one who is left with stock exhaust?
>> Thank you very much.
>> Konstantine
>>
>> On 10/25/2011 8:52 PM, Tom Green wrote:
>>> Many of these exhaust systems get trashed because nobody wants them, so
>>> maybe you can get a replacement
>>> flange off of one.  Even the Cats are just gutted by the recycler for the
>>> precious metals and the remainder scrapped.
>>>
>>>
>>> On Oct 25, 2011, at 8:46 PM, Konstantine Bogach wrote:
>>>
>>>> Tom,  changing an exhaust in good shape just because of that flange?  It
>>>> does not settle in my head... yet.
>>>> Thanks.
>>>> Konstantine
>>>>
>>>> On 10/25/2011 4:26 PM, Tom Green wrote:
>>>>> Hi Konstantine,
>>>>>
>>>>> There have been several vehicles parted out or in progress around the
>>>>> country.  Perhaps there
>>>>> is one near you with an intact exhaust.  Even those that are selling the
>>>>> cats have no use for the
>>>>> flanges and many systems are still in very good condition.  You might
>>>>> just find a bolt on solution
>>>>> rather than parts for a repair.
>>>>>
>>>>> Tom '95 S6
>>>>>          '95.5 S6 avant
>>>>> Knoxville, TN
>>>>>
>>>>> On Monday October 24, 2011, at 11:52 PM, Konstantine Bogach
>>>>> <kbogach at comcast.net<mailto:kbogach at comcast.net>>  wrote:
>>>>>
>>>>>> I was not able to find a split triangular flange to attach the pipe to
>>>>>> the cat on S4 '93.  Original rotted away.  Wasted $40 (2x$10 + $20
>>>>>> shipping)  for a pair of closest size from Canadian manufacture but
>>>>>> that
>>>>>> did not fit.  Anyone knows a source for split flanges which fit on
>>>>>> stock
>>>>>> pipe?  A local exhaust shop offers to cut flanges and weld-on a
>>>>>> straight
>>>>>> pipe.  Is it most common approach?   Seems like vandalism to me.
>>>>>>
>>>>>> Thanks in advance.
>>>>>> Konstantine Bogach
>>>>>
>>>>>
>>>>>
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