Broken Catalytic Converter? Smoked Corners? - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 01-19-2005, 03:11 AM
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so, I think my catalytic converter is shot, hasn't been replaced in 155k miles. Whenever i go over the slightest bump I hear a rattling sound like a can of nails coming from undearneath my car. The exhaust system itself and the brackets are all tight, it wiggles fine on the rubber mounts. Do you all agree that my catalytic converter needs to be replaced? Is there an alternative to replacing it, how much might a new or slightly used one cost?


Also I was wondering where i could get smoked corners for my car, like in the picture. The picture is of my car, I just photoshopped the corners to about how I would like them to be, maybe a little to dark. But if any of you know where i could find a pair of smoked corners like these, It would be greatly appreciated
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#2 (permalink) Old 01-19-2005, 04:06 AM
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get under ur car and bang on ur cat a few times. if it sounds like a baby rattle (i.e. a bunch of stuff shaking about inside the cat) its time to replace it.

the best bet....go to a GOOD muffler shop and ask them their opinion. if they are honest, they will tell you flat out. it should not cost a thing for an estimate.

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#3 (permalink) Old 01-19-2005, 08:47 AM
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Good luck finding a Cat. at a cheap price. The lowest price i've seen is $499 from bimmerworld.com...

Complete mod list and pics:

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#4 (permalink) Old 01-19-2005, 09:46 AM
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Quote:
Originally posted by SilentOne@Jan 19 2005, 03:11 AM
B)

so, I think my catalytic converter is shot, hasn't been replaced in 155k miles. Whenever i go over the slightest bump I hear a rattling sound like a can of nails coming from undearneath my car. The exhaust system itself and the brackets are all tight, it wiggles fine on the rubber mounts. Do you all agree that my catalytic converter needs to be replaced? Is there an alternative to replacing it, how much might a new or slightly used one cost?


Also I was wondering where i could get smoked corners for my car, like in the picture. The picture is of my car, I just photoshopped the corners to about how I would like them to be, maybe a little to dark. But if any of you know where i could find a pair of smoked corners like these, It would be greatly appreciated
[attachmentid=17408]
[snapback]274700[/snapback]
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#5 (permalink) Old 01-19-2005, 10:13 AM
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BMWBeauty416 is a name known to all BMWBeauty416 is a name known to all BMWBeauty416 is a name known to all BMWBeauty416 is a name known to all BMWBeauty416 is a name known to all BMWBeauty416 is a name known to all
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have you considered putting in a resonator instead of putting another cat back in?

~*Teg*~

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#6 (permalink) Old 01-19-2005, 10:16 AM
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Ya, my cats are AWFUL. Whenever I idle they rattle like INSANE.

Oh, and of course my car has 2 of them to replace, JOY.

<img src='http://i116.photobucket.com/albums/o17/M4yorThis/119575444991686.jpg'>
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#7 (permalink) Old 01-19-2005, 10:16 AM
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If your cat is shot (no pun intended :P), then you'll smell a sulferic smell that kinda is like feint rotten eggs. That's pretty much a sure sign.

Sounds to me like this is a perfect opportunity for a full aftermarket exhaust sytem. Your bimmer is trying to tell you something, hehe
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#8 (permalink) Old 01-19-2005, 01:16 PM
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Quote:
Originally posted by Deloriant@Jan 19 2005, 09:16 AM
Ya, my cats are AWFUL. Whenever I idle they rattle like INSANE.

Oh, and of course my car has 2 of them to replace, JOY.
[snapback]274761[/snapback]
hey, i can prolly find you a cat back system pretty cheap.
its not performance, but its the type you keep in the garage till SMOG DAY, then you put the track pipe on the rest of the time...

works great too.

Mark
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#9 (permalink) Old 01-19-2005, 02:19 PM
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they should have those smoked corners at bavauto


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#10 (permalink) Old 01-20-2005, 03:43 AM
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Speedy, what cat back system is it? just curious. "Illwasteyou" I have looked and only seen the dark smoke for the 4door, not the 2door coupe. Correct me if i'm wrong
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#11 (permalink) Old 05-05-2005, 10:20 PM
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hey guys, about the after market exhaust systems..........is the one offered in bavauto for a 95 model 325is an after market or oem replacement catalytic convertor?
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#12 (permalink) Old 05-06-2005, 12:55 AM
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I bought smoked corners a week ago from an ebay seller and they look fine. you can try alot of places though.

bavauto.com just has the clear ones that i see.
m3motorwerks.com
bekkers.com
autodynamic.com
procarparts.com
ebay.com of course

just remember that 2 door and 4 door are different and they will not fit is you get the wrong ones.

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