spracingsports

I'm going to replace my super-awesome OBX MTL replica muffler with an OEM alternative, as I want it quiet again.

I want a CTR or ITR muffler, but I have a coupe.

I've been told that the tip of the CTR muffler will not match with the coupe's rear bumper because the muffler is mounted closer to the bumper on a hatch.

My question is, will an ITR muffler line up properly with a coupe? Any have/seen or possibly have pics of an ITR muffler on a 96-00 coupe?

Thanks in advance,

Jay

DumbasSi

The way the muffler mounts is the same with any EG/Teg/EK. But the bumper on on EK is much longer then any EG/Teg, so the tailpipe tucks under the bumper instead of sticking out. The Teg muffler is a bit longer, but the tailpipe is much shorter. The tailpipe just needs to be lenghtened if you like.

http://honda-tech.com/zerothread?id=844440

spracingsports

Page is still loading, but it sounds like just what I needed to hear.


Thanks alot Mikey.

RDub99

iTrader: (1)

it looks good tucked under the bumper like that.. thats the way I'd leave it..

spracingsports

One more question.


In there they talk about the full catback fitting on a B16 equipped Si. Would the full ITR catback (from the Acura dealer) still fit properly on a D16 equipped EX? There was mention of B-pipe lengths and Cat lengths differing and they sorta confused me.

In the end, I just want to know if a full ITR cat-back exhaust will bolt up, without mods, to a USDM Civic EX coupe. For example, I understand that the tip is slightly short, but would I need to modify the hangers, etc.


As I've seen in those pics, I most likely will not be extending the tip at all, unless I get a rear lip later on down the road.

DumbasSi

When I was looking at the ITR exhaust for my 98, I remember reading that the front flamge on the ITR exhaust is different and that the intire midsection is too short. I ended up using an SIR exhaust just because it was easier to just bolt it on.

imported_esp

well Mike and Jason,

the ITR muffler will be short by 1.5"-2" from the bumper and I think it looks bad. However, the flange and bolts line up perfect aside the fact that our stock si midpipe is 1.7+" and the ITR inlet is 2.25" I think. Anyway Zorro had to extend the tip but the bolt on was pretty much bolt on.

EDIT
Actually Mike, i wanna know if the ITR midpipe will work with my stock cat? we have the same car.

DumbasSi

I think that the ITR cat is different and thats why the front flange on the ITR midpipe is different too. I think the easiest thing to do would be to just compare the 2 exhausts side-by-sie and see how they are different.

imported_Team Rukus

from what i know the mid pipe is a bit too short where the down pipe meets the mid pipe. also the flange is angled different so cutting and welding will be required for sure.

also the muffler tips. yes the ctr will sit lower then the itr since the itr was mouted without a lip and the ctr was mounted with a lip. however the ctr will be short because of the bumper size and the itr will fit properly.

spracingsports

so i cant use the ITR B-pipe? just the rear section??

i always heard that the SiR exhaust can bolt straight up to the cat of an Si.... maybe they too just meant rear section.

so youre saying im going to either have to get another EX midpipe and bloth the ITR rear section to that, or get the full ITR and have it modded? crap.... my custom exhaust goes all the way to my cat.


and jay, what do you mean by down pipe meets mid pipe? all i know is it goes: cat>B pipe>rear section

is the down pipe the bottom half of the exhaust manifold?

imported_esp

Stock EX D16Y8 -> your aftermarket cat/Bpipe -> ITR muffler

or

Stock EX D16Y8 -> weld ITR/SiR cat with Bpipe -> SiR/ITR muffler

or

Stock EX -> ITR/SiR car -> weld stock EX B pipe -> SiR/ITR muffler


The point is, the ITR/SiR cat is different but can bolt up. If you bolt it up to the IM, then the B pipe will not line up. If you line up to the B pipe, the IM side won't line up. That's what Jay is saying.

so I'd go with my first choice up there.

My problem is this

B16A2 -> stock D16Y8 cat -> stock D16Y8 B pipe -> ITR muffler. NO welds.


I need to replace the mid section and I don't know what I'm gonna do. HAHAHAHA HELP!!!!

spracingsports

do you mean EM (exhaust manifold)? if not, what is IM (i guessed intake manifold)?

ok so ITR cat/ITR B-pipe/ITR muffler wont match up to my manifold.


i guess im just gonna go and pickup another stock EX b-pipe, and then only get the rear section ITR exhaust, then just get the tip extended at a muffler shop.

imported_esp

oops I meant EM sorry

Jay honestly,

find the ITR cat back and see if you can weld onto your EM. IT'd work. If you're gonna pay to have the tip extended, get it done right.

Otherwise, find the stock EX stuff and do it yourself no welds needed.

spracingsports

Jay, could you explain to me in what way the ITR B-Pipe wont bolt up to the stock EX cat?

Is it that the flanges are a different pattern? Are they at odd angles so they arent flush? Is it a length issue where they don't reach each other or its too long?

I'm just thinking if its something like this I'll have my muffler guy do the small mods needed. I don't wanna go back to stock sized b-pipe if I dont really have to.

imported_Team Rukus

the flanges are on opposite angles meaning one might be on a 45 degree angle and one might be on a 60 degree angle therefore the bolt holes wont line up properly.

as for the lenght i believe the d series down pipe wont be long enough to reach the itr mid pipe.

put it this way since you will have to modify the flange anyway they are going to have to cut that section off and reweld it so if its a bit short they can extend it for you at the same time.

recently i swapped in a jdm gsr into an ls integra and the flanges where at opposite angles so i just had them cut it and turn it to the same angle as the downpipe and then weld it back and bolted up the bolts cost was 20 dollars. really cheap.

spracingsports

Ok, I'm gonna go with that. I'll have the muffler shop do the small weld work.



Thanks for the help guys, I'll let ya know how it goes and get some pics.

imported_Team Rukus

cool
my question is tho whats the diameter of the downpipe on the d series motors?
because it would be a waste if your have a tiny downpipe and then a larger midpipe and muffler. unless u already went aftermarket.

spracingsports

not sure, i think the stock midpipe is 1.7", but im not positive. So it would probably be 1.7" no?

I plan on getting an aftermarket header in the future so i figure the bigger pipe cant hurt.

imported_Team Rukus

in that case you might have to ghetto rig it.
because the flange on the downpipe will be smaller then the flange on the b pipe atleast for now.

spracingsports

you mean the 2 flanges where my cat meets the b-pipe?

just incase you are mistaking it (which you probably arent) I have a cat downstream of my manifold, not attatched to my manifold. (like the lower model d series i think) (this is the case where the downpipe connects straight the the b-pipe right? im pretty sure mine goes downpipe>cat>b-pipe) i think im just misunderstanding you though.