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Who would be up for a one piece hotpipe for the stock i.c? Jim at Pierce Motorsports said that he would be willing to make one for us. He will be looking at mine when he does my exhaust soon and see what kind of plan and price he can do for them. I am up for one for sure to get this hesitation gone. I will also see if he can make the cold pipe to when I am there
 

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Yeah I am interested also. I like seeing how different companies do the same product but have their "touch" on them.
 

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Who would be up for a one piece hotpipe for the stock i.c? Jim at Pierce Motorsports said that he would be willing to make one for us. He will be looking at mine when he does my exhaust soon and see what kind of plan and price he can do for them. I am up for one for sure to get this hesitation gone. I will also see if he can make the cold pipe to when I am there
I'd be keen, but I expect the cost of delivery to NZ will be prohibitive :).
 

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As of right now I am trying to get a date set with him. He was at SEMA last week and is catching up on work at his shop. I will be calling him when I get home or tomorrow morning to set the day. I am shooting for the first week of december if possible
 

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I would probably be up for one
 

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We have confirmed that yes, the upgraded hotpipe does help/mask the surge that we experience. But what it all comes down to is the stock ecu map is what is causing this surge. This has been 100% confirmed by John @ tork (the owner and amazing tuner)
I was on the phone with John for about 1 1/2 hours two days ago just shooting the shit with him. We got to talking about a lot. Whats to come in the future, what his current shop builds are. But one major part of the convo was him in depth explaining about what the surging is and how he corrects it.
I couldn't begin to explain this the way he did. But in a simple way, its literally the mapping in the ecu and protocol of how it calculate exhaust flow. He literally said, these maps look like a child wrote them.
So YES. This hotpipe will help this issue, but slowly and surely the ecu will start to say, HEY FU YOU MODS, and attempt to pull back and inhibit the power you have made.

I also have some really good information as far as why this surge exsists
@forte5 this is what I have been trying to explain to you when I have been telling you to call so I could tell you what I found

As you all know, I am a foreman @ a kia dealer. Since day one I have done a lot of digging into this issue.
I started with cleaning out my fuel system since we have been seeing coking occurring in the fuel lines from the manufacturing process and or the lining of the tank/fuel lines
I did not find anything on my vehicle. But 2 fortes on the lot did have a blockage which I then corrected and confirmed proper operation

The next in line was when I started talking to ITJUSTME and ended up getting a hotpipe from him that I installed and confirmed the surging fix
But this doesn't all matter in the end run. because there is something very interesting that I found out
Being a tech I get access to driving more then just my forte. So over the course of the past month or so this is what I found
My car, a 2015 has had the surge since day one. The 2 cars on the lot which are 2015 have the surge
The forte that was on the lot previously that I test drove, which resulted to me buying one because I was very impressed with it, was a 2014
This didn't perk my interest until just last week, a customer brought there vehicle in for maintenance and a brake pulsation concern. So I was able to drive this one and compare it to all the others
And to my surprise, this forte did not have the surge!! And guess what? wait for it...... it was a 2014
HMMMMMM I am starting to see something in common here.
So last week I had ordered my tune. I was in need of a spare ECU just for a few days so I could drive my car. But wasn't in need of it when mine returned. So I offered MikeyB the ECU dirt cheap so when I was done with it. I would write his VIN number it and it would be his!!
To order the ecu It needs to be done by VIN. When I ran his VIN something interesting happened. The part number for my 2015 was different then his which is a 2014.
so I kept digging. Come to find the part number change was in early 2014 roughly Feb 28 2014. At this cut off date. All ECU's that come in a forte will have the updated part number. To even further investigate. When I received the 2014 ECU for his vehicle. I pulled the calibration software series out of both of them. And to my surprise . THE 2014 ECU AND THE 2015 ECU HAVE DIFFERENT MAP CALIBRATION!!!!!!!
Now that knew this I went and confirmed even further to prove this.
MIkeyb owns a 2014, build date is actually somewherein the end of 2013 (which is still considered a 2014) He has never experienced the surging but a couple hiccups here and there. This vehicle has the first ECU
ITSJUSTME owns a 2014 But this one was a close one. He bought his on March 28th 2014 Build date is early march. Therefore he has the 2nd ECU. HE also experiences the surge
Do you see how this works?? Early 2014 build. Owner does not experience surge . Late 2014 Build ( around august a 2014 is technically a 2015 ) owner experiences surge
 

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Elementary, my dear Watson!

Joking aside, I'll check out my 2014 when I get off work in the AM for this bit of detective work and see when it was made. I really only noticed the surge when it's cold (first 20 minutes of being on).
 

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When did u buy your 14
Regardless, you would know if you had the surge. If you did you would not be saying you really only notice when its cold for the first 20 minutes
Btw the ecu has protocol for oil temp water temp etc wheh its cold so you cant beat on it. Kinda like a saftey mode in a way
Thats what your feeling
 

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I would maybe see the surge feeling is more like a feeling of boost lag, for me anyways that's the easiest way to explain it
 

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The only time I ever felt a surge was when my motor was kinda cold and it made no power like @knee explained to help protect while engine is cold. My car is a 14 and I bought it used so don't know when it was made. How can I find the DOB for my car? And I don't experience any surge. (I don't think)
 

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Yep your production date is 3/4/14
Ran your vin for the ecu also
You have the 1st gen
Therefor just as you have been saying you havnt felt the surge.
If you did. You woukd know. Beleive me
 

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Do you feel boost and than a lag feeling and than boost again? I do feel something like that but it's barely noticeable on my car
 

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Lol. Dude
BELEIVE ME
If you had the surge
YOU WOULD KNOW!!
No stock car is perfect. Always going to be hiccups loke yoir describing
But the surge is something of its own
 
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