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Discussion Starter #1 (Edited)
Hi guys,
I'm interested if fitting a PLM exhaust and stock exhaust is a good idea, what do you think?
Will they fit? Also does it come with a defouler in order to avoid CEL ?

The thing is that I'm looking for the quietest setup that's why I want to keep the stock exhaust.
 

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Hi guys,
I'm interested if fitting a PLM exhaust and stock exhaust is a good idea, what do you think?
Will they fit? Also does it come with a defouler in order to avoid CEL ?

The thing is that I'm looking for the quietest setup that's why I want to keep the stock exhaust.
It will fit fine, I just did this to my car - it should be quiet too

As far as the CEL I am having problems with it - still trying to figure that out


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Discussion Starter #3
Thanks.
So the PLM did not came with a defouler in order to avoid CEL?
 

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Look up the how to install the weapon r header. There is a how to on how to build a defouler. It works like a champ.


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Discussion Starter #5
As I read the collector for PLM header has 2.5 inches.
What's the size of the stock exhaust ?
Isn't a restriction there on the stock exhaust where it merge with the 2.5 inches test pipe from PLM ?
Or is the transition smooth ?

I'm just trying to find the most suitable exhaust headers for a stock exhaust.
 

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As I read the collector for PLM header has 2.5 inches.
What's the size of the stock exhaust ?
Isn't a restriction there on the stock exhaust where it merge with the 2.5 inches test pipe from PLM ?
Or is the transition smooth ?

I'm just trying to find the most suitable exhaust headers for a stock exhaust.
I think the stock exhaust is like 2 1/4"

The transition isn't bad that's not much of a difference only 1/8" around.

You usually don't see much gain off an aftermarket exhaust unless its a single tip And is around 70mm


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Discussion Starter #7
Thanks for the advice.
In the end I've decided to go with the Weapon-R headers.
And now I was wondering if you guys can recommend me a defouler (CEL eliminator) for the test pipe ?
Also will I need an O2 sensor extension in order to install this , or not ?

I've seen these on clubrsx .com
twist Angle CEL Eliminator | CEL-ANG | Free Shipping | K Series Parts
and
twist O2 Sensor Extension | O2EXT | Free Shipping | K Series Parts

But I'm not sure if they will fit, any idea ?

If not can you recommend me other parts ?
 

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Make one like the -how to- explains its less than $10 and works.


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Discussion Starter #9
I don't have the proper tools to do this, I'll better buy it.
So if you guys can recommend me a defouler?
And I will repeat the question, do I need an O2 sensor extention?
Are those from the above links good for the WR headers?
 

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I got mine from blox just cuz that was the one they had in stock - it's the straight one


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I don't have the proper tools to do this, I'll better buy it.
So if you guys can recommend me a defouler?
And I will repeat the question, do I need an O2 sensor extention?
Are those from the above links good for the WR headers?
You don't need O2 wire extension. You'll have to remove O2 sensor wire from it's holding bracket (just above tranny) and route it differently around subframe/steering rack, but it works just fine and even has a little play to account for engine moving around.

Re defouler, make your pick, straight or 90deg depending on how you are putting your downstream O2 in:

straight
Vibrant Performance ::.

90 deg
Vibrant Performance ::.


And if you would like nice transition, here you go:
Vibrant Performance ::.

Not sure that you'd pick up much from it, but it sure looks nice when you are under the car :)

Regards,

Nino
 

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Discussion Starter #12
Thanks Nino.
I saw a lot of people installed the angled defouler, so I assumed I need an angled myself, didn't know I had a choice.
And the transition item is very nice but will it work with the stock exhaust without modifying it?

Any idea why the Vibrant defouler is more expansive than others, just being curious ?

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Thanks Nino.
I saw a lot of people installed the angled defouler, so I assumed I need an angled myself, didn't know I had a choice.
And the transition item is very nice but will it work with the stock exhaust without modifying it?

Any idea why the Vibrant defouler is more expansive than others, just being curious ?

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Vibrant defouler has 3 inserts that can change the ID of the defouler. Some ecus/sensors are more sensitive to amount of exhaust flow that 02 "sees" and these three inserts allow you to compensate for this condition and regulate the amount of exhaust flow that reaches o2. Effectively you are changing ID of the defauler by putting different inserts into it.

Re transition, I added mine into WR test pipe, but I do my own welding. This is not a quick hack, so I would suggest you skip the transition as this is not something I would be paying to have done...
Re angled or straight, again, in my case straight worked best as I have re-designed WR test pipe completely and even added 200 cell metal core catalytic into it, hanger for the header in the stock location and so on. Mine fits like stock, but this attention to detail will cost $$$, and arguably is not really relevant in the end anyway.

If you have to pay for these things, WR is a great choice, buy angled defouler, and do what everyone else has done before you that went bolt up route. Enjoy the power, as this mod makes awesome difference on TSX with stock exhaust.

Regards,

Nino
 

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Discussion Starter #14
Thanks a lot Nino, very helpful information.
 

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Discussion Starter #15
does the defouler need to be welded on the testpipe ?
 

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Discussion Starter #17
Thanks Nino, I've just ordered the Vibrant angled defouler you recommended me.
My WR headers arrived also :)
 

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Discussion Starter #19
Any suggestion which insert to use from those 3 provided in the kit ?

 

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Any suggestion which insert to use from those 3 provided in the kit ?

I've used biggest hole one (thinnest one) in the past and it worked well.
The idea here is:
if you get P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
Try smaller one.

If you get Secondary Oxygen Sensor slow to respond type a code
Try bigger one.

I didn't have to take these out before, biggest hole one worked just fine in my case.
Don't forget to secure it with that c clip or it will just fall out and rattle in your cat back...

Regards,

Nino
 
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