Exhaust pieces a la carte?

F

Frankiago

Evo Troll
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IL
How many pieces are there to our exhaust?

Headers
Cats
Y
Mid
Muffler

Is that correct? In that case, is it possible for me to buy JUST a mid pipe?

For example... the STS kit bolts up to the stock mid pipe flange, in place of the muffler, so I won't be needing a muffler.

UTR-Y pipe is the only one that'll fit, being AWD.

Already have headers and test pipes...

Would the stock muffler bolt up to a Nismo mid pipe? What mid pipes would it bolt up to? Can I buy JUST a mid-pipe from an exhaust set? I'm looking for a stainless piece.

I plan on header-wrapping my exhaust from the headers, through the test pipes, and all the way down the Y and mid pipes, so I'd like a full stainless exhaust, but buying the mid-pipe alone doesn't seem possible. I'd hate to buy a full cat-back to get ONLY the mid pipe :tongue:
 
You should be able to buy just a midpipe, but with all the mismatch items, you should check your diameters for consistency. Also, if you buy a mid made for a Z, you'll need the G35 extension.
 
I would like to know the stock exhaust inlet and outlet diameter sizes?

I could search the org but I always come up with way too many illrelivent posts.

Besides, I was thinking of keeping the stock muffler. I like the tips.
 
silverFX said:
I would like to know the stock exhaust inlet and outlet diameter sizes?

I could search the org but I always come up with way too many illrelivent posts.

Besides, I was thinking of keeping the stock muffler. I like the tips.
Click to expand...

*updated*

I measured my stock exhaust:
Dual 2.25" inlet to the Y-pipe (I don't know this for sure, as I didn't take my y pipe off)
Single 65mm outlet of the Y-pipe
Single 65mm inlet to the mid-pipe
Single 65mm outlet to the rear-section

As in tip size, HKS is 115mm or roughly 4.53".
OEM tip size, outer diameter 100mm
 
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Cube said:
How many pieces are there to our exhaust?

Headers
Cats
Y
Mid
Muffler

Is that correct? In that case, is it possible for me to buy JUST a mid pipe?

For example... the STS kit bolts up to the stock mid pipe flange, in place of the muffler, so I won't be needing a muffler.

UTR-Y pipe is the only one that'll fit, being AWD.

Already have headers and test pipes...

Would the stock muffler bolt up to a Nismo mid pipe? What mid pipes would it bolt up to? Can I buy JUST a mid-pipe from an exhaust set? I'm looking for a stainless piece.

I plan on header-wrapping my exhaust from the headers, through the test pipes, and all the way down the Y and mid pipes, so I'd like a full stainless exhaust, but buying the mid-pipe alone doesn't seem possible. I'd hate to buy a full cat-back to get ONLY the mid pipe :tongue:
Click to expand...


(Updated due to wrong info, see above for OEM measurements)

I don't think anyone has been "brave" enough to purchase this:
http://zerotek.net/infxztcohibo.html
The zerotek y-pipe that *should* fit our FX35/FX45 RWD and AWD due to the more extreme spread. I recall someone buying the exhaust system and had bad problems and even worse customer service. I have no idea though as I didn't experience this myself. Many on this forum would appreciate if someone tried...hint hint. The y-pipe shouldn't have as many fitment issues (or at least I hope so) as there is the flex section that can give little leeway. But then again if it's just not made well, that's a whole other story.

I heard rumors of the UTR y-pipe coming out again and also a HKS y-pipe that is only available in Japan (not on www.hksusa.com website). Didn't another member copy someone else's y-pipe to duplicate it? Someone else just had one made at a custom shop.
 
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That being said, go buy the HKS mid-pipe and HKS rear-section is 100% interchangeable with OEM y pipe and rear section. I have done this and proved it so no need to worry. The resonator is much less restrictive and found an immediate increase in sound swapping just mid-pipes. But note that you will need an extra hanger above the W brace as the bend is not perfect, but this is the same issue with the Nismo mid-pipe (see Pierce's post) + g35 extension. The issue is that it hits the W-brace under the car and makes a rattling noise. Not a big issue but annoying nonetheless.
Click to expand...

Not exactly accurate. It was after the installation of the UTR y-pipe and the added weight and flex joints caused the sag and hence the rattling on the W brace. With just the nismo exhaust installed there was no rattling up to that point.
 
After talking with my brother, I think I'm just gonna go custom exhaust.

I plan on chopping my test pipes just shortly after the mount to the headers, and start opening up the exhaust from there. Funnel it up from the 2.25" to 3" piping, extending down to mimic a Y-pipe and instead just come to an H or better yet an X if my bro feels comfortable with that... then come dual 3" all the way down where the mid-pipe would be, then finally Y-together into the stock mount between mid-pipe and muffler flange so that I can bolt this right up to the turbo exhaust manifold :tongue:

(bro does welding, and works at AMS)
 
Dr.2K said:
Not exactly accurate. It was after the installation of the UTR y-pipe and the added weight and flex joints caused the sag and hence the rattling on the W brace. With just the nismo exhaust installed there was no rattling up to that point.
Click to expand...

Is it the UTR y-pipe that is more heavy than stock?
 
Cube said:
After talking with my brother, I think I'm just gonna go custom exhaust.

I plan on chopping my test pipes just shortly after the mount to the headers, and start opening up the exhaust from there. Funnel it up from the 2.25" to 3" piping, extending down to mimic a Y-pipe and instead just come to an H or better yet an X if my bro feels comfortable with that... then come dual 3" all the way down where the mid-pipe would be, then finally Y-together into the stock mount between mid-pipe and muffler flange so that I can bolt this right up to the turbo exhaust manifold :tongue:

(bro does welding, and works at AMS)
Click to expand...

AMS - probably one of the few places I know that deals with stainless steel. That's a nice connection.
 
Chedman13 said:
AMS - probably one of the few places I know that deals with stainless steel. That's a nice connection.
Click to expand...
Both my brothers work there lol... I'm thinking of just goin with the cheapest STS kit, no intercooler and base turbo, then get my IC and turbo from my AMS hook up :wub:

STS uses pretty cheap stuff anyways to keep their cost down.
 
Sorry not a lot to add to the question at hand. But doesn't the Nismo y pipe fit the AWDs? Not sure how many 45s running the full Nismo exhaust, but TrainerKen has it and I don't recall any transfercase issues.
 
rookie said:
Sorry not a lot to add to the question at hand. But doesn't the Nismo y pipe fit the AWDs? Not sure how many 45s running the full Nismo exhaust, but TrainerKen has it and I don't recall any transfercase issues.
Click to expand...
he had to cut it somewhere around the flex and mold/extend it so that it would fit. his custom method also bypassed the g35 extension piece as well.
 
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