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post #1 of 4 (permalink) Old 11-02-04, 01:25 AM Thread Starter
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Join Date: Sep 2002
Location: The Shire, Sydney
Age: 37
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New cat

Hey Guys

I just had a new engine fitting on the weekend and just prior to having it installed I gave my car an good thrashing, as one does when he's getting a new engine
Anyway, in doing so my old cat collapsed blocked off about 75% of the airflow thru it. For the mean time the situation has been "remedied" so I can drive the car but obviously being a good law abiding citizen I'm going to replace it shortly.
Problem B: chunks of the cat internals seem to have ventured down through the rest of the exhaust into the muffler and generally throughout (I can hear it rattling)
I went to an exhaust place today and they quoted me $300 to fit a new cat and clean the rest of the system out - which involves having to remove it all and then reweld it back on in sections. $280 of that price is supposedly the price of the 2.5" cat. I've seen cats around for less than that, and even 3" ones for around $200.

Is it worthwhile going from my 2.5" extractors to a 3" cat and then back to the 2.5" cat back system or should I just stick with a 2.5" straight through? According to autospeed "a high quality aftermarket cat converter has about the same flow restriction as a low-grade muffler of the same diameter"
Then there's the AU/BA cat...
What have others used and found to be good/bad or indifferent ?



5 speed 4.0 EF Futura
IT's Stage 4 engine
ET: 14.4 R/T: 0.001s !
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post #2 of 4 (permalink) Old 11-02-04, 04:02 PM
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Location: Blue Mountains sydney
Age: 33
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Re: New cat

ive got an au cat if ya wanna buy it

ED fairmont
Wheels by ROH
Lowerd by Kmac
Exhaust by Lukey
Sound by Pioneer and Jaycar
Pioneer DEH P1Y headunit
pioneer 6.5 2ways
Pioneer 6 stacker
Jaycar 6.5 Kevlar splits
Jaycar 15 venom sub
Jaycar 2x150 wrms amp
Jaycar 4x100 wrms amp
PS2 by SONY
TV by lillyput
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post #3 of 4 (permalink) Old 11-02-04, 05:32 PM Thread Starter
Mob Sh!tter Extrodinaire
 
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Join Date: Sep 2002
Location: The Shire, Sydney
Age: 37
Posts: 126
Re: New cat

How much, how many ks ?
The blue mountains is probably a bit too much of a hike to make it worthwhile...


5 speed 4.0 EF Futura
IT's Stage 4 engine
ET: 14.4 R/T: 0.001s !
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post #4 of 4 (permalink) Old 11-02-04, 06:02 PM
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Location: Blue Mountains sydney
Age: 33
Posts: 1,090
Re: New cat

$50-60 and it's yours i can meet you in penrith ,um not many i cant remember ,but it was well under 100,000 kms

ED fairmont
Wheels by ROH
Lowerd by Kmac
Exhaust by Lukey
Sound by Pioneer and Jaycar
Pioneer DEH P1Y headunit
pioneer 6.5 2ways
Pioneer 6 stacker
Jaycar 6.5 Kevlar splits
Jaycar 15 venom sub
Jaycar 2x150 wrms amp
Jaycar 4x100 wrms amp
PS2 by SONY
TV by lillyput
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