removing cat

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removing cat

Postby Magua » Sun Jan 08, 2006 4:20 pm

Well according to an independant check my cat converter is $&#$%. How much would it cost to get it removed? Yeah I should of asked at the time, but that was then and this is now. :roll:
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Postby deaf_rattle » Sun Jan 08, 2006 4:22 pm

they arent cheap, so in the meantime id probably just get a bit of pipe made up to replace the cat.
however in the not so distant future you may be required to have your cat installed and working depending on the year of manufacture.
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Postby Adydas » Sun Jan 08, 2006 4:51 pm

just go to pits flop and say oi Cututh this out and placeing a pipe in there. would be cheap well some what.
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Postby BZG Wagon » Sun Jan 08, 2006 5:00 pm

I think its like $60 to have it removed (the previous owner removed it in my car). You should get a little more power out of it too.
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Postby Chickenman » Sun Jan 08, 2006 5:42 pm

You could gut it?

Take it off and use a gnarly big screwdriver to poke out all the redundant material.

No cost (unless your car falls on your head... then it can get pricey)
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Postby Mr Revhead » Sun Jan 08, 2006 5:45 pm

go to a wrecker, or pitstop etc and get a cat out of some thing like a falcon, itll be bigger sand less restrictive
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Postby BZG Wagon » Sun Jan 08, 2006 6:02 pm

Mr Revhead wrote:go to a wrecker, or pitstop etc and get a cat out of some thing like a falcon, itll be bigger sand less restrictive


...or just take it out...
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Postby Mr Revhead » Mon Jan 09, 2006 8:06 am

the problem with that is WHEN the new law comes in, not if. you will need to replace it, and by then demand would have increases the prices.


plus no cat means your car is spitting out some really nasty chemicals
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Postby barryogen » Mon Jan 09, 2006 11:36 am

Mr Revhead wrote:the problem with that is WHEN the new law comes in, not if. you will need to replace it, and by then demand would have increases the prices.


plus no cat means your car is spitting out some really nasty chemicals


then add a flame thrower to the exhaust to sort the chemicals out... simple :)





















I'm joking of course... replacing with a high flow or one from a bigger car(simplified somewhat meaning bigger flow).
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Postby Santa'sBoostinSleigh » Mon Jan 09, 2006 3:07 pm

ive got a pipe with flanges on both ends for sale on trademe (link in sig) to replace a cat... thats always an option?
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Postby wanado13's » Wed Jan 11, 2006 10:18 am

I wouldn't reccomend getting a bigger cat from a falcon or any other car with a cat made to filter a bigger capacity engine than your own as a cat for a falcon was designed to filter the air of a much bigger capacity engine and can therefore end up being actually more restictive than the one originally in your car to begin with.

I got the cat taken out and a piece of pipe welded in for my levin for 60 buks by pit stop, I didn't notice any diff in performance although as it has freed up my exhaust a tiny bit I suppose there probably was some gain. But removing gave my car a different exhaust note, it's a bit tinnier (not what I was hoping for) in the higher revs but thats the way 4agze's are.

If you do get your cat removed tho make sure you get it back off them as they keep them a sell them to this place in auckland where they are recycled. I asked for my one back and took it to pick a part and they gave me 40 buks for it and it was rooted.
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Postby Mr Revhead » Wed Jan 11, 2006 10:23 am

cat for a falcon was designed to filter the air of a much bigger capacity engine and can therefore end up being actually more restictive than the one originally in your car to begin with.


:? how can it be more restrictive?

granted a falcon one is prob a bit big, id be looking at a 2ltr one in hindsight.
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Postby wanado13's » Thu Jan 12, 2006 11:09 am

It can be more restrictive because the purpose of a cat is to reduce harmful emissions, and because say a 3 litre six puts out more harmful gases than a 1.6 four (unless there's something really wrong) the cat for the three litre needs to filter much more exhaust gases. So when you put the bigger cat on the smaller car it is being filterd much more than need be slowing down your exhaust gases, thus more restictive.
I've seen the aftermarket ones and they are no bigger than my old one, it's just that they are designed to flow alot better than the factory ones that are really only geared towards meeting emission standards although the new cars ones have pretty good flow
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Postby Mr Revhead » Thu Jan 12, 2006 11:13 am

thats where the size comes into it
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Postby gothegravel » Thu Jan 12, 2006 9:00 pm

I just had a bloke open it up and scraped out in my gtt so it looks like its still there. he he
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Postby barryogen » Mon Jan 16, 2006 7:56 am

gothegravel wrote:I just had a bloke open it up and scraped out in my gtt so it looks like its still there. he he


if/when they change the emmisions laws here, you'll be pumping out too much, and have to replace it anyway.
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