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ian
21-09-2005, 03:11 PM
Does the stock size of 'cats' differ from EJ's, EK's, EM's & DC's or are they all the same size (lengths)???

Do they vary in size? If so which are the same and which aren't? Are EJ, EK & DC 'cats' interchangeable with EM's?

Has anyone had first hand experience with this?

2000 civic vtir coupe (EM1) 'cat' pictured below.

http://www.ozhonda.com/forum/attachment.php?attachmentid=1283
V-techWhore
21-09-2005, 03:27 PM
I know JDM cats are shorter than AUDM.
So te piping would be longer than stock AUDM hondas.

So if u get a JDM catback zorst, u need a diff cat.
ian
22-09-2005, 08:07 AM
my stock cat pictured above is on an EM1 (made in america), but bought here in oz.......would my car be considered as AUDM or a USDM? from what i've learned - all civic coupes (EJ's/EM's) are made in the USA and hatchbacks and sedans are made in Japan.
LAGOOT
22-09-2005, 09:11 AM
I know JDM cats are shorter than AUDM.
So te piping would be longer than stock AUDM hondas.

So if u get a JDM catback zorst, u need a diff cat.
ditto :thumbsup:
remember ian i was talking to you last meet?
and i told you that when i got my exhaust put on they modified the aftermarket cat due to the Vision system being for JDM cars.
ian
22-09-2005, 09:17 AM
:thumbsup: yes yes i remember.........although i was assured/guaranteed that it would bolt on direct to my stock cat, the trader who i bought it off had just bolted his exhaust straight on to his stock cat, on his civic vti coupe.
steve
22-09-2005, 06:04 PM
hey ian,

jus got my stock cat off 2day, same 12fin design as yours, i got a em1 2, if that helps at all?
ian
22-09-2005, 06:13 PM
yup, all sorted on my end too! so how does yours go? mine's awesome.....
ian
23-09-2005, 09:40 AM
Can anyone verify these and fill in the blanks?

stock EM1 cat = 12fin cat (long)
stock EJ8 cat = 6fin cat (short)
stock EK1 cat = ?
stock EK4 cat = ?
stock DC2 cat = ?
stock DC2R cat = ?


http://img.photobucket.com/albums/v326/hondar/catalyticconveter/JDMCATVSNORMALCAT3.jpg

stock EJ8 (98 vti civic coupe) 6fin cat - shorter (top)
stock EM1 (00 vtir civic coupe) 12fin cat - longer (bottom)
r`Geno
23-09-2005, 10:02 AM
I'll post pics of both dc2r jdm + audm cats when I get home tonight.
hondar
23-09-2005, 11:08 AM
its good to add all car if possible .. and make it a sticky.. i think this is our very own ozhonda database... i have not seen it anyone has it anywhere on the web (i might be wrong) and this will help to clear any myths surrounding it :D
TYPE-R617
23-09-2005, 11:22 AM
speaking of cats, does anyone know where to get them from, what are good cats, are there any difference in performance and how much? its for an ITR DC2 to be put on a Toda header 4-2-1.
r`Geno
23-09-2005, 11:46 AM
speaking of cats, does anyone know where to get them from, what are good cats, are there any difference in performance and how much? its for an ITR DC2 to be put on a Toda header 4-2-1.

Depends which Toda header you're ordering. They make at least two different types - one to fit 96 spec jdm cat, and another to fit 98 spec jdm cat.
TYPE-R617
23-09-2005, 12:01 PM
Depends which Toda header you're ordering. They make at least two different types - one to fit 96 spec jdm cat, and another to fit 98 spec jdm cat.


one to fit a ITR DC2 2001
r`Geno
23-09-2005, 12:09 PM
No, I think you misunderstood. I'm talking about the part that connects to your catalyst.

All of them fit the exhaust outlets of the block.
TYPE-R617
23-09-2005, 12:41 PM
the header is da one adrian is selling from Toda for ITR DC2 2001 if that helps
r`Geno
23-09-2005, 12:54 PM
the header is da one adrian is selling from Toda for ITR DC2 2001 if that helps

Then you can count on Adrian knowing which is the right one for you. Just be sure to find out which cat you have and let him know beforehand.

Toda header should give you a 7-9 kw gain atw (on a stock standard dc2r with high flow cat).
TYPE-R617
23-09-2005, 01:01 PM
Then you can count on Adrian knowing which is the right one for you. Just be sure to find out which cat you have and let him know beforehand.

Toda header should give you a 7-9 kw gain atw (on a stock standard dc2r with high flow cat).

7-9kw gain atw without any mods, everything totally standard with just changing to Toda header and an high flow cat? how do i find out wat cat i got?
r`Geno
23-09-2005, 02:16 PM
7-9kw gain atw without any mods, everything totally standard with just changing to Toda header and an high flow cat? how do i find out wat cat i got?

Yup.

I'll post pics of the audm and jdm cat when I get home (more like tomorrow night actually), you're most likely to have an audm cat which you should replace with a better flowing cat.
TYPE-R617
23-09-2005, 02:41 PM
yeh maybe i do have a audm cat but if u could post those pics that would be great i appreciate it. thanks. do u know how much cats are and wat are good ones?
r`Geno
25-09-2005, 11:42 PM
Stock DC2R catalyst


http://img326.imageshack.us/img326/942/picture0762yn.jpg





JDM catalyst


http://img285.imageshack.us/img285/2626/picture0752tz.jpg
Mugen Civic
15-08-2009, 12:08 AM
Bringing up this old old thread as i'm researching about my cat.

Is the EK1 sedan cat 6" or 12" or 16" in length?
trying to find a bolt on test pipe for it.
F.O.B Squad
15-08-2009, 09:22 PM
Sorry for maybe going off course with the thread but what brands are good to look at getting and brands that you should avoid getting??

Would like some information on what to look for when getting a Cat. especially if i'm after a hi flow cat.
SHU-ES1
17-08-2009, 11:49 AM
i think getting metal high flow cats are better than ceramic ones. im getting a venom one from this guy in melb for decent price.
F.O.B Squad
17-08-2009, 12:11 PM
i think getting metal high flow cats are better than ceramic ones. im getting a venom one from this guy in melb for decent price.

I saw those venom branded cats on a website. Still unsure if they are good quality or not.