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  • In Your Face
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  • Member For: 22y 1m 29d
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  • Location: Peninsula
  minstral said:
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Wasn't passing judgement

I want to know all involved from fines to what maybe required to equalize the back pressure.

<{POST_SNAPBACK}>

Just do it ya Pu55y :Imwifhim:

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  • FORD FORD FORD
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  • Member For: 22y 1m 20d
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  • Location: Victoria Point In Brissy's eastern side

I know a bloke that knows a bloke that says that it is a P.I.A. job to ............. um modify the stock item, but that it makes a big difference when done, even to a stocker. As for a legal replacement, in some weeks the skirt formerly known as Goldie will have some new contenders or XLR8ed has some that he likes, contact them at your own will

  • - Track Bound EVO III -
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  • Member For: 20y 4m 22d
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some reports of 'rotton egg' smell.

SMB do a 4" cat for a few hundred, plus fitment.

  • Here since the start...
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  • Member For: 22y 11d
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  • Location: Victoria

I don't know... I was wondering the same thing. I'm sure there's guys who have replaced their cats, hopefully they'll inform us on what they did.

  • CNUTOX
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I saw an ad in Zoom magazine, and they did a comparo on a product called "magic cat". I seem to recall that they thought it was the ducks guts when compared to other so called performance cats. I think it was 4'' compared to alot of the 3'' performance gear available.

Maybe streettuner can enlighten us?

I'll see if I can find the magazine.

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  • Member For: 20y 4m 6d

My old VS 165kw was dyno'd with a hollow cat, only made 116rwkw, at that time the average (stock) VS was around 108rwkw.

It did make a distinct hollow ringing sound with the stock single system.

Thinking of it, a hollow cat is probably the worst thing 'flow dynamically' wise to have.

I would imagine any serious performance increase would require a complete package. (Again the VS - pacemaker pipes, twin cat, twin 2.5 straight through mufflers and the chrome tip only gave 24 rwkw extra - with std chip)

As for them knowing what's inside, I do believe that having a working cat is not even part of the QLD roadworthy check, as long as something that formerly resembled it, is there.

As for the polution, havent I heard which 'old' cars can run on unleaded - without cats.....same polution, if not more.

JM2c

Jim

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