Vti-R Vs. Type-R Cat Converter

[RoryAlexander]

Alright. Last question.

I buy this after market exhaust, if i buy a universal 2.5 inch metal cat and weld flanges on to it.

there will be no problem with fitment of the type r aftermarket exhaust to the vti-r chassis?

i wont have to modify it any further to make them all mesh together?

[RoryAlexander]

Well, I most likely will not go to a exhaust shop, my brother has a number of friends who are more than able to fit these sort of things. i would NOT let anyone cut up the exhaust.

So by buying a universal cat converter and welding on flanges, i eliminate any fitment issues?

[MM89]

aftermarket cats are much shorter than the standard AUDM cat
so you will most likely need to weld a bit of 2.5" pipe to end of
the cat and put a flange on the end of the pipe and then bolt
it onto the catback flange.

catback will fit without modification from what i understand

[RoryAlexander]

The magnaflow cat i am looking at is 34 cm.

or 13 inches.

Not long enough.. ?

[MM89]

Judging by what 90Lan has said;

JDM cat = 30cm
AUDM ITR cat = 45cm

If as you mentioned, the exhaust (i'm assuming catback) is designed for USDM
market and is same length as AUDM catbacks, you will obviously still need to
add some piping to the end of the magnaflow cat since it is still shorter than
the AUDM cat.

I was assuming you were getting a JDM catback until i read the previous posts.
So with the USDM catback + magnaflow cat, the only modifications which you
should require is the triangle flange for the cat, the 2 bolt flange for the other
side of the cat connecting to headers and some piping on either end.

[RoryAlexander]

Thanks mate!

Yeah thats all good then. Hopefully it will sound like the world is ending.
After the exhaust + headers are sorted im thinking about ITB's, maybe in half a years time or so.

[GSi_PSi]

sorry for hijack, but ive got a toda 4-2-1's what flange is on the end? cause i need to identify my cat size?. I know its not stock cause it looks like a hi flow one.

[RoryAlexander]

sorry for hijack, but ive got a toda 4-2-1's what flange is on the end? cause i need to identify my cat size?. I know its not stock cause it looks like a hi flow one.

Isnt it just the normal two bolt flange that joins a header to a cat? the triangle flange is for joining the exhaust to the cat.

And if its a high-flow cat, i think it would be logical to assume its the same size as the collector on your headers?

[90LAN]

sorry for hijack, but ive got a toda 4-2-1's what flange is on the end? cause i need to identify my cat size?. I know its not stock cause it looks like a hi flow one.

it will be a 2.5inch donut flange

stock on most jdm headers for b series

[GSi_PSi]

okay sweet so will RMF headers bolt on directly to my exhaust?

[m3ntAL_l2]

till trying to confirm.

all in AUDM

is dc4 = dc2 = dc2r cat? all the same?

[dc2r-0636]

No audm vtiR cat is 30cm where as the audm dc2R cat is 45cm. Not sure bout the dc4 man
(only going by what ive heard from mates and what 90LAN said in post #9)