DC2R exhaust system

[andreewvoo]

Hey guys . I would like to know if the JDM catalytic converter fit on AUS headers for the dc2r?

[SuperJDM.]

yes it fits

[andreewvoo]

If so then why would you need to change the header and catalytic converter to have a aftermarket exhaust?

[Tai]

JDM DC2R Cats are shorter than AUDM Cats

so unless you modify the exhaust then it will not fit.

[EKVTIR-T]

SuperJDM please be sure before you post

Wrong info could cost people $ and yes its shorter

[andreewvoo]

So aftermarket exhaust will fit if you change the catalytic converter to JDM?

[andreewvoo]

SuperJDM please be sure before you post

Wrong info could cost people $ and yes its shorter

So the JDM catalytic converter doesnt fit on AUS headers?

[EKVTIR-T]

If you want to use a jdm catback with audm header then you need the shorter jdm cat along with it

[andreewvoo]

Ohhh !! yeah just doing some research before i start buying my catback .. So Shorter or JDM cat is the other thing i need to change ... Thanks alot EKVTIR-T

[SuperJDM.]

yes it fits

this was to his question "does a JDM cat fit onto a AUDM header" and i said yes it does.

reason why people change the AUDM cat to a JDM cat is so that they can fit a JDM Catback because it will not bolt up onto a AUDM cat.

Unless you need to modify the cat to fit the headers then i am sorry.

i dont see why you should neg rep me tai if his question was clearly a yes or no question and i replied with a "yes it does"

[EKVTIR-T]

But he would have went and bought a jdm catback,went to have it fitted and half way through realised the catback is too long for his aussie cat and have to put it back on and go buy a jdm cat.

Alot of stuffing around :)

[SuperJDM.]

LOL but that wouldnt of been our problem? he didnt ask anything about fitting a catback

[andreewvoo]

JDM and AUDM catback is the same LENGTH. Not too sure if the AUDM cat will fit the J's B-pipe, unless you cut the AUDM cat and flange it so that it fits the Catback. But yes, you cannot run JDM cat with AUDM header. The AUDM header outlet is tiny compared to say a Toda header outlet.

Sorry guys but reading into forums i get alot of people sayubg AUS headers does not fit JDM cat..

[SuperJDM.]

Sorry guys but reading into forums i get alot of people sayubg AUS headers does not fit JDM cat..

lol. i have JDM headers on my car, why does my AUDM cat bolt up to it? if a AUDM cat bolts up to a JDM header then no doubt JDM cat would do the same

[andreewvoo]

So i wouldn't need to mod the header or cat its just a bolt in job?

[SuperJDM.]

i would think so yes. let tai confirm it though

[Tai]

If the catback exhaust is a jdm branded one, then you need a JDM cat +jdm dc2r headers
9 as a bolt on ) or you get a custom cat to suit the headers/catback

But if the catback exhaust is custom then the b piping can be modified to suit the cat/headers.

But to be honest you are better off getting a new after market cat as the cat itself wil be 10+ years old.

[chauster]

Hey guys . I would like to know if the JDM catalytic converter fit on AUS headers for the dc2r?

So you should have bought the dc2r off me with the exhaust... lol!it had full mugen exhaust.

[andreewvoo]

Hahaha ! should of man...

[Evok]

lol. i have JDM headers on my car, why does my AUDM cat bolt up to it? if a AUDM cat bolts up to a JDM header then no doubt JDM cat would do the same

So ur JDM headers bolted on to the AUDM Cat? I brought JDM dc2r headers and wondering if they do... or do i have to buy a jdm cat.

[SuperJDM.]

So ur JDM headers bolted on to the AUDM Cat? I brought JDM dc2r headers and wondering if they do... or do i have to buy a jdm cat.

i have 5zigen headers and they bolt onto stock AUDM CAT.

thats all i am saying

[rhys.l]

If you change any section of your audm exhaust system to a jdm part, you need to either get some custom work done, or replace the rest of the system with jdm parts. The only piece that is excluded from this is the axle back which is the same on the audm and jdm exhaust system.

^^I'm not sure how you got the 5zigen headers to fit. Is 5zigen an American brand? That's the only way I could see it working

[EKVTIR-T]

Hes talking about his EM1 with B16 so its not relevant

[rhys.l]

Well I have literally tried to do that exact thing (5zigen header to audm cat on b16 em1) and it DID NOT work. Interested to hear if there is more to the story

[SuperJDM.]

Well I have literally tried to do that exact thing (5zigen header to audm cat on b16 em1) and it DID NOT work. Interested to hear if there is more to the story

i always thought that anything that has the Jasma plate on it was made in Japan.

Telling you now that it bolts right on because i did it in my garage

[rhys.l]

Fair enough, I've realised there is the possibility the collector on this 5zigen was modified (it was huuuuge)