Say you wanted to stay with the stock tune, what if you got this catted header AND and o2 spacer? Would that pretty much guarantee no CEL?

There is no guarantee. Anything that changes the stock emissions equipment can throw a code.

Agreed can never be 100%, but a catted UEL with an o2 spacer ontop would decrease the chance of a emissions code even more, right? Pondering whether to get a o2 spacer along with the catted UEL as I dont plan on getting tuned and it seems some people get codes and some dont.

Only one way to find out. But why no tune? I'm not a huge fan of OFT, but you can find them for $350 used and that would fix the problem.

189 Pages.... holy cow.

So what's the general consensus, OFT Stage 1 or 2?

Found a thread here where (apparently) Shiv suggested to someone back in 2014 to use Stage 2. I've sent him an e-mail today asking if that information is still accurate.

www.ft86club.com/forums/showthread.php?t=75636

Update : Well, that was fast...!

Yes indeed ;)

Best Regards,
Shiv Pathak
OpenFlash Performance
www.openflashperformance.com

On Dec 16, 2016, at 9:39 AM, Jonathan Gauthier <xxxxxxxx@hotmail.com> wrote:

Hello again Shiv,

OFT is due to arrive today, really excited !

Since I have the FT86 SpeedFactory Catted UEL header, I have been a fair bit of research today on which tune I should be using...

Found a post that dates back to 2014 with your name mentionned :

"I am using 91 Octane Stage 2 UEL OFT flash with the FT86 SF catted UEL headers. Stage 2 UEL was recommended by Shiv"

Is that info still valid today?

Thanks & best regards,
Jonathan

I've been running the Stage 2 UEL 91 oct tune since August with my JDL catted header. After rescaling the MAF for the Perrin Intake I have, I get no FLKC and my IAM stays at a solid 1.00. I always use 93 oct fuel but chose the 91 oct tune as a precaution, they are only slightly different above 5K RPM, so you feel the same improvement at the torque dip. I haven't had any issues yet

Just be sure to Log a few runs and make sure you don't have any knock and you're AFR is where it should be. There is a thread in the Software Tuning subforum that tells you what you need to log and what to look for

Its really to the point that your car is really not your car, the only thing you can truly do anymore is just visual stuff and no engine work, makes me miss my '72 Camaro, i could do anything i wanted to it and never had to worry about emissions or any of the other Bs the Government has come up with over the years. Can't even put a damn aftermarket exhaust component on a vehicle made after the mid to late 70s without the possibility of a CEL or not passing visual checks. Anybody with knowledge knows that the emissions test is total BS and has been a complete failure since its inception, hasn't made the air cleaner, LA and California in general still have disgusting air despite some of the strictest emissions laws in the world. Kinda like how you truly don't own your house because of property tax, don't pay your property tax then we'll just take it off u, "oh u put a header on your FRS? Well guess what u don't pass emissions", don't pass emissions/ inspection and get pulled over by a cop? Well your car gets towed and taken from u.

Just Fyi these are the states u wanna move to that don't hassle u at all with BS,
Montana, Wyoming, North and south Dakota, Minnesota, Iowa, Nebraska, Oklahoma, Arkansas, Michigan, Kentucky, South Carolina(which i am hoping to move to in the next year or 2), Florida and Alaska. There area couple other states that have emissions in certain areas and not others, but the above listed are completely free of hassle.

And Texas ;)

Fact check: I live in California where emission standards are considered the strictest in the country and a catback exhaust is CARB legal and is not subject to visual scrutiny during emission testing, and many aftermarket components are CARB legal if they get approved including supercharger and turbo kits. Yes, having no cats is illegal, and I'm glad for it.

Your argument that LA hasn't improved its air quality is a non-sequitur and doesn't consider what the air quality would be like if 1960's emission standards existed today.

Moving options: There are plenty of remote counties in California that don't even require emission testing. Yes, it is still illegal to run catless, but it really isn't hard to either. So you do have options if you want to ditch your cats for 15 more decibels of noise that could have been achieved from eliminating your catback resonator, or for that 10hp you will never feel. Better yet, I hear emissions laws are super lax in Beijing. Maybe that is an option, but only if you own a face mask of course or you may get asthma.

Guess i missed one, the site i looked at said Texas has certain areas for emissions, i was listing the states with no emissions at all

I'm going by many guys on here that live in Cali getting harassed by coos and when it comes time for inspection. Yes u guys still have heavy smog in areas of CA, has it improved from the 60s? Yes i'm sure it has, i was stating actuality in my post, wasn't looking for an argument, the emissions test is dumb because for it to REALLY work the whole country and the whole world has to be on board with it. China and the other big manufacturers in the far east are a major contributor to smog and they do very little to control it unlike we have, what u don't think that air makes it here to the US?

but, speed factory say yes, not cel!

Hi there,

First post on the forum. I thought I would share some thoughts and experience with the speedfactory UEL catted header. I had those installed two weeks ago. My BRZ has a 3 inch Perrin resonated exhaust (no noticeable loss, quiet yet gorgeous sound when downshifting), K&N air flter and is now running with a custom stage 2 91 octane UEL tune form @shiv for the headers. I contacted him recently and he was more than helpful sending the custom tune (thx man). Before that I run the headers with stage 1 93 oct tune. No problems at all. No CEL. Nice throttle feel all allong 2.200 - 3.500 rpm (aprox). Front and overpipe are stock. Things to consider if you go the speefcatory86 catted header:

A) You will IMMEDIATELY feel the difference in the torque deep. It is almost gone (but still a little bit there, though it is a HUGE improvement)
B) Your exhaust note will vary. I lost the gorgeous sound of downshifting which I really loved. Bassy - deep sound. God I miss it. Instead, you have a nice rumbly sound when reving above 3000 rpm. It is also a little bit louder, but not much. Meaning if you rev hard on a tunnel you will be noticed, but otherwise is ok.
C) Exhaust note will also vary with new tunes. It did when I jumped from 93 stage 1 to the custom tune shiv sent me for 91.
D) In my setup, headers sound a little raspy - metallic. I do not like that sound as much as I liked the stock header clean flow. Maybe I have to give them some more mileage on them. Don't know.
E) You can put back the bottom shield, it fits just ok. Some have had vibration issues. None of that happened to me.
F) I did not know about the soundtube in the brz (see: [ame="https://www.youtube.com/watch?v=Fs6ykO4m6O4"]Scion FR-S Sound Tube Mod (Intake noise delete) - YouTube[/ame] ). Thing is, you can silence the incabin motor noise (if you want to do so) with the lighter cap (You have to push it hard into the tube to be really effective). I am not sure if I like it, yet. Planning on putting an inlet hose and sound delete. But still it does make a difference.
G) There are not so many pics of the install from the engine bay view, almost all of them are from below. So I post some of them here.

https://s21.postimg.org/et6fkaw13/20170709_111057.jpg


https://s24.postimg.org/e8tf9a7et/20170709_111042.jpg


https://s1.postimg.org/brm25qp3j/brz-blzck.jpg

Thx to @FT-86 SpeedFactory for answering all my questions prior to purchase and kudos to @shiv for custom tunes! (beta v3.0 releases on-the-way see: http://www.ft86club.com/forums/showp...17&postcount=1 )

UPDATE on FT-86 catted headers
 

This is interesting - I've got the same custom tune and also felt like the Stage 1 tune was more peppy on the street. But when I reviewed my data logs, turns out it was running fairly lean. There was also some FLKC at higher RPM's.

My theory is that the Stage 1 tune feels stronger because it's running leaner and making more low-end torque. But it's actually making less peak power because of the FLKC at higher RPM's.

My fuel trims are noticeably smaller with the custom tune so I went back to it. The AFR's are a bit rich though.

Stg1 93 vs Custome Stg2 91 tune for Catted Headers
 

Thanks for the feedback! I've been driving curvy mountain roads, highways and daily driving. I Still think stg1 93 feels more stable. Although I can confirm that high speeds are more difficult to achieve. Say you could reach 237 km/h, now it seems to be stuck at 211 km/h. Not that you can't push it, but it seems harder. And yes, you run leaner. Last time I logged I did not see anything wrong with IAM and FLKC or air-fuel ratios though. There still are no official new OFT tunes yet. I guess I will give it a try when they're available and re-check high end speed. Thx again for commenting on this man.:thumbsup:

PS: it turns out that the vibration issue I was having had to do with the skid plate being bumped. I had stepped over a street corner while drifting and that bump was hitting the headers. There was yellow paint on it so... After pushing it down all seems to run smooth and nice again.

Great Review thanks for posting
 

Thank you for posting with that much detail man. really helps us who are trying to decide.

Just a quick update: the somehow little raspiness is gone. I think it has to do with just using and abusing the header. Still, I haven't find a tune that suits this header just fine for 93 octane.

Best.

Enviat des del meu SM-N920G usant Tapatalk

Thats the Reason for Custom Tunes mate.

Every Car is different, so are the Mods done to it and the available Fuel Quality.

reader All data

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Attachment 165987

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It's been a while.


But today looking at the engine bay I noticed that the FT-86 speedfactory badge that came attached to the header had fallen and it stuck to the bottom shield. So I would suggest removing the badge on the first place so you do not get in trouble if that piece of steel falls of at full throttle and starts jumping around under your engine bay. I guess temps were high and the welding did not hold quite as well.



Here are some pics of the badge:


https://i.imgur.com/BabZGwk.jpg

And:


https://i.imgur.com/Ow40VdM.jpgBest!

Why the tunes?
 

I'm new here and new to BRGs so I'm learning.

Early in this thread the FT-86 SpeedFactory guys stated in the video that they installed their Catted UEL on an otherwise completely stock car with a stock OEM tune. They made a point of stating that NO CUSTOM TUNES are required when installing their header.

They then proceeded to the dyno where significant gains were measured particularly in the torque mid-range area.

Then I read in this thread that many users are tuning with 3rd party software and I am asking why they do so. The easy answer could be that they are in search of further gains but is this really the case?

One of the many reasons why this product is attractive to me is the mid-range torque increase without the need for tuning.

Please explain.

In my case I did first install the UEL catted header with stage 1 OFT tune (which is not designed for aftermarket catless or catted headers anyway). It did get rid of some torque dip without having to go stage 2. Indeed I flashed the ecu to stage 2 but I did not like how it felt and got back to stage 1 (91 octane tune)

Although my gas is 92 octane. I guess you will probably feel the difference with no tune also. How much? well, that depends on what your expectations are.

Having said that, if I had to do it all over again, I would have chosen a cattles UEL header and make sure it is ceramic coated if you plan to go FI in the future.

My 5 cents :)

Enviado desde mi SM-A730F mediante Tapatalk

While the ECU can learn and adapt, Custom e-tunes are still the way to go for best overall drive ability, safety(Not running to lean or to rich) and power/smoothness. I am going through the same with @Tor who is helping me dial in my car(UEL Tomei catless Header). I am going to have him add a bit of margin into the tune to insure Advance Multiplier is always at 1 and my AFR's are inline everywhere and not just at WOT, insure I have maximum timing added in all areas. I want to be able to take the car to the track beat on it and not worry about the engine running lean under even higher stress.

IIRC claim "without the need for tuning" in context that they hoped/planned for cat readiness CELs to not appear with their catted headers with completely stock ECU tune. IIRC CELs still had popped up for some after longer driving, so it's not exactly went as planned, and i guess one still will need custom tune with readiness checks disabled just like with other aftermarket headers. In your quote one needs to highlight words "Early in this thread" too :)

Thank you all.

Given that the SS version is on BO I ordered the coated version though a FI is not intended now or in the future.

The reason that I'm asking about the tunes is in part due to the fact that the extra top end power that they show will require more fuel and the AFR calibration may/will have to change. Or can this ECU learn and deliver more fuel within a tolerance margin?

If tuning is mandatory, and since at this point OFT is reported to not be actively supporting their product, I'm not willing to undergo the expense and the complications.

Thanks again.

Tuning is partially "mandatory".
With stock tune gains from aftermarket header will be less, and one will need to clear catalisator readiness CELs from time to time for cruise control to work. Otherwise car is normally driveable.
I wouldn't completely write off OFT though. Imho it's nice for DIYers due non locked tunes and lot of good tuning information by community available, and there are other competent tuners that can help you with, eg. steve99 and wayno, for reasonable cost, even if you are wishing for more then OTS tunes and want to deal with someone else but Shiv for fine tailoring your tune.

Thank you churchx, I had no idea. This makes me feel a lot more comfortable going forward.

Scala: keep in mind, if you are after custom tune performed on dyno with some local tuner ship and or have more then basic bolton mods, but eg. also forced induction, then imho going ecutek route is better, as most tuning shops use it for twins.

Appreciate that, thank you.
I will only be installing the catted UEL by FT86 Speed Factory and nothing else. The guys at SF tell me that I will not need a tune as long as I install no other parts but I prefer to tune to avoid any trouble with the AFR and also to take full advantage of the 93 RON.

If you haven't yet bought that catted UEL, i'd rethink your plan. As i've mentioned, catted ft86sf is not sure way for CELs to not appear with stock tune, so why bother? If you'll get ecu tuned anyway and cat readiness checks can be disabled in custom aftermarket tune, why not go for catless header for noticeably more gains & cheaper price of header?
Those guys are right that car will be usable with stock tune (apart from possible need to clear CEL code at some occasions), and i guess gains of less torque dip and UEL burble-ish sound will be there with stock tune too .. but then again overall gains will only be very slight, yet catted headers cost more then catless ones.
I'd rather get ecu tuned no matter if with or without aftermarket header. Except of course if with ecutek, then only after all planned mods installed, to save on tuning.

Thanks for the heads-up.
Catted for the noise reason. I've heard both and the catless is much too loud for me. Same reason for stopping at the header and not going beyond.
UEL and catted because of the pulse rumble which I am used to and I like on my STI and because I'm hoping for a lessening of the torque dip in the mid-range.

CELs is something I'm used to and anyway by now I'm very close to deciding in favor of the OFT just to be safe with the AFR.

Is 500$ a fair price for a used one (9k miles claimed).

This is the first part i am buying and i have nobidea what the discount is on used parts

bibbity boppity give me the zoppity

If everything seems on the up and up, that strikes me as an awesome price. I have one in my attic with 13,488 miles on it and I wouldn't even consider selling it for that little.

Thanks, so <20k miles is considered pretty new? Do you know how much is the drop just from having it mounted?

bibbity boppity give me the zoppity

It doesn't matter how many miles lol
Used is used. Sell at half price as usual or sell at half price with extra $100 on top or just a tad lower than half. If the price doesn't match anyof those 3 options, it aint worth it.

I doubt there is a standard drop in value just for having it mounted. It's used; it's worth less. Like anything, the price is what the market will bear.

I was hoping for a rule of thumb but i guess ill just have to sit on my hands for a bit till i can get a feel for the prices. Thanks

bibbity boppity give me the zoppity