Re: dual downpipe

["Mr. Eddy" <eperson@students.uiuc.edu>]

go find any old cat in a junkyard that is a little bigger than your pipe(ie
2 1/4" if you have 2") and not rusted out, hollow it out so you can see
through it and put a piece of pipe inside it thats the same size as your
exhaust.  Weld the sucker up and youve got an instant straight pipe "cat"
for not much cash.  Shouldnt restrict flow any either if you use the same
size pipe.

Eric Person
86.5 16v (w/no cat)

At 02:16 PM 2/14/00 -0800, M. Hansen wrote:
>Hi All:
>Just installed a tt downpipe and exhaust I got for $50 off of a wrecked
>GTI.  Sure wakes up the old beast and it finally sounds as healthy as
>the rest of the cars in my garage.  Really like that raspy sound above
>4000 too.  My problem is that I am facing emission testing for the first
>time in 6 months and they do a visual inspection for a cat converter.  I
>really don't want to ditch the downpipe for a tt cat downpipe so I was
>thinking of installing a cat right behind the downpipe after the shift
>box.  Physically there is enough room and this would let me pass the
>visual test.  I'm not so concerned about the effectiveness of the cat so
>far back from the engine.  My friend with an 84 Rabbit installed a built
>2.0L 8-valve last year and passed emissions with flying colours not soon
>after.  this was with g-grind, 10:1 comp, and porting.  So I figure that
>my 'roc should pass easily as well.  What are your experiences with this
>and do you have any suggestions?  Any help is appreciated.
>
>Mike Hansen
>83 Scirocco GT
>
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