H-Pipe Replacement on Nismo
 

Does anybody make a H-pipe replacement for the Nismo Z's? Other than Sunline (there are issues there) and Amuse...anyone know anything or anyone that can make one that will bolt up to the OEM system?

Something like a 2.5" ID all the way through piping.

im interested in this as well.

Maybe we can get a bunch of Nismo owners and get a group buy for some shop to make one? Maybe FI or someone who is willing and does good work??

Im in for this!

:iagree:

When i talked to tony from FI about this, he told me he'd need a nismo physically present at his shop to be able to fab up an X pipe to replace the OEM H pipe.

I wound up just ordering the full CBE and LTHs but I'm still wondering why no one really makes something like this for us.

im making a trip down there soon to have an X-pipe fabbed :). however, he said he wasnt really looking to put one into production as it would likely take away sales from their full CBE sales.

Okay...that really bites. Is there anyone else that has good connections to a reputable shop that can produce a few of these?

I figure technically they would just use the OEM pipe as a baseline reference and create a free flowing 2.5 version of it.

Chops-If you could...would you mind asking if he would make a limited run for a few of us that is willing to pay for the limited production. Hopefully a small quantity would also help to buffer your cost due to volume. Would love to have one made with resonators.....need to cut the rasp down a bit.

i will definitely ask tony for us all! ive approached a few people about making a custom x-pipe for our cars, but no one has agreed aside from tony @ FI. ill keep ya'll posted. looking to make it down one of these weekends in the next month or two

Much appreciated. Hopefully he would be willing to do that for us and there will be some people that keep up their interest to make it worth his time.

Would be nice to have a X pipe made and maybe with resonators to help cancel out the exhaust rasp from "open" pipes.

He should consider how many fewer nismo's there are than base,sports, or touring editions. I dont believe it will make his CBE sales go down. I have his LTH's now and I do not intend on buying his CBE (although it is not a bad product by all means), however I would purchase a nismo X-pipe from him.

True...the muffler isnt that that bad...the restriction is a lot more in the cats and the H-pipe area.....I think.

Oh Yea! If anyone wants an X-pipe right now for there nismo or any other z you can get one from Dr. Gas Exhaust. You just have to weld it up. It comes across as a cheap product (to some people) but I have used them alot and the quality is good. The X section of there exhaust carries alot of volume (two pipes joined not two pipes into one). OR Tony could make us one from two pieces of tubing that bolts right in???

You are correct. I made a thread a while back where I measured our oem nismo exhaust at different points and the H pipe was necked down to 2.1" and the post H pipe pipes to the muffleer were 2.4".

so basically, other than the H pipe, we have a 2 1/2" exhaust and the cats and the H pipe are the restriction.

That said, you'll save some considerable weight too, switching out the oem nismo exhaust for something like the FI cbe. That's what ultimately swayed me into getting the FI CBE vs. having a shop fab up and x pipe for me. I wanted to benefit form the weight savings too.

Nothing is "wrong" with the FI exhaust per se....I just wanted to use the OEM hangers in the back and I am not a fan of the muffler cans pointing out.

But...the replacement of the mid pipe would be great and still help the exhaust system a bit.

I just bought a 2.5'' X-Pipe replacement for the H-pipe from another member here. I'll take some videos and stuff once I get it installed. It was custom fabricated by a shop. I wish I could afford the Amuse one :(

/\ mmmm, Amuse Titanium goodness, it's so beautiful I'd be actually sad to put it under the car where it could get dirty.

I could justify the cost for the actual exhaust...but the H-pipe for 1700+...ick. A bit too much there.

Still hoping that FI is willing to make a few and maybe with some resonators to cut the rasp down.

Has anyone been able to see Tony about this as of yet? Or does anyone have a fabricator that is willing to do this as of yet?

I spoke to Tony about this last year and he can definatly fab one up at his shop if you bring it in...only thing is that there would be a very minimal amount of hp gain from this..probably just better to get a complete exhaust as othr people have stated.

I have talked to several exhaust manufacturers and they have stated that alot of them have seen better gains across the board with an exhaust that necks down in the center rather than a straight through 2.5, 3inch, etc exhaust. Everyone explains that it gives you a better average torque to hp range. Like I have said this is what I was told so I asked my friends that work for some Nascar teams (I live near charlotte and mooresville) and they told me that this is how the exhaust is on the race cars they work on. Although you have to keep in mind most race cars run at very high rpms, so with normal street driving it may not make a difference.

True...I can see the point in regards to high RPM's and exhaust scavenging effects from pressure and all...(<---cant explain it in scientific verbiage)....but get the point. Its just that for us Nismo owners...the rear portion of the exhaust has 2 feed pipes from the H pipe. So if we want to change out the H pipe....we need to replace it with a H or X pipe that still has 2 exits to feed into the rear muffler section.

I suppose that there are no "vendors" that really are going to do this for "mass production" and everyone will have to find a local shop to fab that part then. Kind of a bummer....but guess that this is where this is going.

Thread bounce ....

Has anyone found a bolt on replacement yet for the NISMO H-Pipe?

I am not willing to pay the price of admission for the AMUSE piece even though it is a great piece of kit. It would look better on a wall in my house than under the car ... :icon17:

i had it on my Nismo exhaust, with the Berk HFCs, there was too much rasp... I sold it to JeffBlue (Nismo Exhaust + H-Pipe replacement) and with OEM HFCs, it sounds good.

Tony at F.I. is interested.

Someone with a NISMO has to be near Northridge CA so he can take a look at manufacturing this piece.

Anyone? Anyone? Bueller?
Oh wait, I bet a bunch of forum members are too young to get the reference.

Didn't have this problem on my Nismo. I originally had an 09 touring sport and after it was totalled I replaced it with a 2010 Nismo. I transfered over my FI 18" resonator carbon fiber muffler exhaust over to my Nismo in just 45min. The hangers all lined up with no problems. The tips look great and don't stick out too far, nor are they tucked back too far. Looks good, sounds much better than the stock nismo exhaust, and there is definitly an power increase.

Sure an H-pipe replacement would be nice but if you are going to upgrade the exhaust you might as well go for a full cat-back

Understood.....its just that I have the Amuse Nismo version exhaust back there. Kind of would like to keep that. :tup:

Just need to have a H-Pipe or an X-Pipe fabricated WITH flanges that go from the cats to the mid-pipe. So far, I still have not seen another company other than Sunline and Amuse with a replacement piece for that section only.

If Tony at F.I. is interested.....I am in when it comes out. Though, if they can run resonators in that section, it would cut a lot of rasp down as well.

Someone help out Tony please so he can help us out in return. I am definitely too far away. :p

Any members still interested in something like this? Spoke with Tony today about fabricating a replacement and I will be following up over the next few weeks. He is a very busy man and it may take some time for me to get my Z into his shop for fabrication but I am set on getting one made for my car. If anyone else wants to get one made I could try to negotiate a decent price and based on his schedule he could possibly fab some extras.

I will buy one if they make it.

By all means go for it. Hopefully it can be done for a "fair" price.

im in too and im local :tup:

This will most likely be an x-pipe configuration similar to the one on the TDX CBE, not sure if I want resonators or not. I won't have any other info until Tony has some time available but if there is serious interest from at least a few people I will try to arrange a group buy.

Resonators would be great I think considering how much rasp the aftermarket exhaust "create".

Did this ever happen?

Just waiting for Tony to have some time, I will post an update when I talk to him again.

sounds good! as i said quite a while ago, i was gonna go for a custom one made, but never got down as gas costs me more to drive, than it is to fly to socal :roflpuke2:

Cool. Got to keep up on this development. Hopefully it works out for us. :woot:

Received an e-mail from Tony this week. Due to the fact that he has the 3" exhaust and turbo kit projects in progress along with the list of customers that are waiting on exhausts this won't happen until May at the earliest. I still intend to follow through and hopefully May will work out for both of us but I will be getting this done even if it takes longer. I will post any updates when I have them.

This is still moving in a positive direction. Much appreciated in all for keeping this "alive".

If he needs a Nismo there in may let me know im local and willing to help out to keep this going :tup: