Catalytic converter location in 3B ES/2 conversion

[Peter Schulz]

Mark:

The closer to the engine the better (cat needs to get hot to work properly)

Despite what mr benz said, the turbo will breathe much easier with that 3 
inch system than the stock single 2.25 inch one in the coupe....
in the 200, it has at least twice the exhaust.(dual 2.25 cats and pipes)

take a look at what Brandon Hull had done http://20v.org/s2/cat.jpg


HTH

-peter




At 08:46 PM 4/22/2004, Bernie Benz wrote:

> > From: "Mark Suttner" <MSuttner at columbus.rr.com>
> >
> > My son Andy is performing a Coupe ES/2 3B conversion.  It will have a 3"
> > exhaust system and we want to keep the catalytic converter.  He has looked
> > to find a high flow 3" catalytic converter in the correct size to fit the
> > factory location which is shoe horned between the transmission and the body
> > but found nothing so far.  We are wondering since he plans to delete the
> > front or first muffler anyway if it is possible to locate the cat just
> > before the rear axel where the first muffler used to be?  There is 
> plenty of
> > space there the only question would be will this location allow the cat to
> > do its job effectively?
>Bigger is better?  No good reason for 3" piping for a 2.2L engine.  Stick
>with the stock stuff, which is adequate for a larger displacement engine.
>
>Bernie
> >
> > Thanks
> >
> > Mark
>
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Peter Schulz
1990 CQ (perpetually awaiting S2 3b engine transplant)
1991 200 20v TQW indigo mica
1991 200 20v TQW titanium grey
Chelmsford, MA USA
peter at audifans.com