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Old 07-13-2002, 01:47 PM   #1
djcontra
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Question Catalytic Converter replacement questions

My catalytic is shot, it still passes emissions but it's been pretty much dead since i have bought the car.
I want to replace it this comming week and was wondering if i can just use a single catalytic converter instead of the twin ones like bmw comes with stock.
I've converted my exhaust system to a single pipe instead of dual pipes, so there wont be any problems there, but i was wondering if i'll experience any problems running with a single cat or not.
should i bother with a free flowing one or just get a regular one?
my mechanic quoted me approx $70 for the cat with $20 installation.
i'm getting a bunch of other things repaired as well so i figured i might as well get this out of the way.

other things i'm doing are adding brembo cross drilled rotors, getting my vanos and exhaust checked out because i hear some sort of clinking sound still, getting my suspension lowered in the rear (finally found somebody who can figure out my coilovers), and getting an oil change =)
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'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 07-15-2002, 08:51 AM   #2
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nobody has changed their cat(s) before?
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'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 07-15-2002, 02:27 PM   #3
mpower1226
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Hey, I need to change my cat as well, say...can I use
the universal cat? say i cut out the factory one and
fit the aftermarket universal cat with lil modifiy to the flange?


DJcontra, where u getting the cat at?...maybe we could go do
together and ask for lil discount?
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Old 07-15-2002, 03:40 PM   #4
djcontra
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i'm going to get it done by the mechanic i always goto here in scarborough, then i'm going up the street a little bit to elite auto to get my car lowered some more and have some other stuff done.
this is all in scarborough, so i dunno if you'd want to come out so far
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'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 07-16-2002, 05:00 AM   #5
mpower1226
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well, i goto scarborough a lot..i mean a lot..
everyday...my gf lives there and my school is there..(ut)
does every cat fits?
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Old 07-16-2002, 08:03 AM   #6
djcontra
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i dont think so
but i'm not sure
i think you need one that fits the diameter of the exhaust piping?
i'll find out all the details today when i'm at my mechanics
__________________

'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 07-17-2002, 05:34 AM   #7
mpower1226
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thnx a lot bro
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