why subaru why?

[Tcoat]

Originally Posted by funwheeldrive

This is false though, right? Europe didn't get the new header for either the automatic or manual.

Correct. They got all the changes that reduce emissions and increase mileage and none of the ones that gave the 5hp increase.
Coincidence?

[gtengr]

Originally Posted by Tcoat

Correct. They got all the changes that reduce emissions and increase mileage and none of the ones that gave the 5hp increase.
Coincidence?

Source? The Subaru document tells a different story.

[Tcoat]

Originally Posted by gtengr

Source? The Subaru document tells a different story.

You are correct. I forgot that the header did indeed change. All of the intake system remain the old style not the exhaust. The exhaust on it's own does not increase the power though.

[funwheeldrive]

Originally Posted by gtengr

Source? The Subaru document tells a different story.

[funwheeldrive]

Originally Posted by gtengr

Source? The Subaru document tells a different story.

Sorry, I meant intake manifold. Still waking up

[tomm.brz]

Originally Posted by gtengr

I'm just referencing the Subaru document that describes the 2017 changes. If it's wrong then it's false, but I don't have any other references handy. The page previous to the one I've attached describes the other changes (intake, block, etc.)

You are reading the wrong section on the pdf, those modification are for all the cars in the world, but there is also another section about the other modifications (dont remeber exactly what it s written) and you can see that in Europe we didn t get the red manifold, the new intake and the hp increse
and I also know that because i have a EUDM BRZ MY17

EDIT: ok i arrived late

[tomm.brz]

Originally Posted by Tcoat

You are correct. I forgot that the header did indeed change. All of the intake system remain the old style not the exhaust. The exhaust on it's own does not increase the power though.

in Europe we got just a new muffler (changed materials) but we didnt get the perfectly-EL new header, we have the old one. and the new larger and EL header contributes to increase power

you guys must read better that pdf!

[Tcoat]

Originally Posted by tomm.brz

in Europe we got just a new muffler (changed materials) but we didnt get the perfectly-EL new header, we have the old one. and the new larger and EL header contributes to increase power

you guys must read better that pdf!

LOL Thanks for clearing that up!
I guess it depends on what part of the PDF you read.
My first statement was based on my memory of the picture and Europe not being included.
My incorrect correction was based on the checklist where it says "all".

[mav1178]

Originally Posted by gtengr

tS emissions would still be greater than an AT with the red intake.

All cars worldwide including AT's got the new header and ECU (and a few of the other changes).

See below. Your info is wrong.

Originally Posted by gtengr

I'm just referencing the Subaru document that describes the 2017 changes. If it's wrong then it's false, but I don't have any other references handy. The page previous to the one I've attached describes the other changes (intake, block, etc.)

Exhaust pipe is changed. MY2017+ rear axle is different, as for material who knows. But header is different between the two.

Originally Posted by funwheeldrive

Originally Posted by Tcoat

LOL Thanks for clearing that up!
I guess it depends on what part of the PDF you read.
My first statement was based on my memory of the picture and Europe not being included.
My incorrect correction was based on the checklist where it says "all".

The "all" part applies to the catback exhaust.
The header was changed but only on MT.

6MT factory header:
https://parts.subaru.com/p/Subaru_20...4620AE350.html
"This product fits 5 vehicle variants.
Subaru: 1 models, 5 variants between 2016 and 2017."

6AT factory header:
https://parts.subaru.com/p/Subaru_20...4620AC960.html
"This product fits 18 vehicle variants.
Subaru: 1 models, 18 variants between 2013 and 2017."

If it's not the same, then why two different part numbers for the same model year? Or just look at the fitment info above.

Edit: both links above for MY2017 BRZ.

[gtengr]

Originally Posted by mav1178

See below. Your info is wrong.

Yep, I think we all see how Subaru was inconsistent in their documentation. That's a tangent discussion though, and doesn't factor that much into my opinion. There are plenty of new passenger cars on the road generating higher emissions than a twin with an aluminum intake, composite intake, tS package, etc.

[mav1178]

Originally Posted by gtengr

Yep, I think we all see how Subaru was inconsistent in their documentation. That's a tangent discussion though, and doesn't factor that much into my opinion. There are plenty of new passenger cars on the road generating higher emissions than a twin with an aluminum intake, composite intake, tS package, etc.

Got it, we will ignore emissions as a reason for these changes on 2017 MT only based on the above blanket statement.

I didn't see any inconsistency, I read it fine the first time and I had no issues interpreting that the exhaust pipe (catback) was changed.

[Tcoat]

Originally Posted by mav1178

See below. Your info is wrong.



Exhaust pipe is changed. MY2017+ rear axle is different, as for material who knows. But header is different between the two.





The "all" part applies to the catback exhaust.
The header was changed but only on MT.

6MT factory header:
https://parts.subaru.com/p/Subaru_20...4620AE350.html
"This product fits 5 vehicle variants.
Subaru: 1 models, 5 variants between 2016 and 2017."

6AT factory header:
https://parts.subaru.com/p/Subaru_20...4620AC960.html
"This product fits 18 vehicle variants.
Subaru: 1 models, 18 variants between 2013 and 2017."

If it's not the same, then why two different part numbers for the same model year? Or just look at the fitment info above.

Edit: both links above for MY2017 BRZ.

Yep. My memory said that was correct but when I went to verify the document seemed to counter that. I went with the document and second guessed my memory.

[gtengr]

Originally Posted by mav1178

Got it, we will ignore emissions as a reason for these changes on 2017 MT only based on the above blanket statement.

What issue do you take with that blanket statement? How does it not adequately cover the possibility that the 86 can have both higher emissions and still meet emissions requirements?

Originally Posted by mav1178

I didn't see any inconsistency, I read it fine the first time and I had no issues interpreting that the exhaust pipe (catback) was changed.

Yep. My mistake. It's not really a factor in my opinion and I think it's more of a tangent discussion though.

[Tcoat]

Originally Posted by gtengr

Yep, I think we all see how Subaru was inconsistent in their documentation. That's a tangent discussion though, and doesn't factor that much into my opinion. There are plenty of new passenger cars on the road generating higher emissions than a twin with an aluminum intake, composite intake, tS package, etc.

Yes, there are cars with higher emissions and that is irrelevant.
We are talking about the emissions that this car was approved for in each country. It was approved at one level (no I do not know what that was) and as per the legal requirements it can not be built at levels above that without testing and recertification. The MTs and the tS obviously either did not exceed those approved levels or Toyota/Subaru felt it was worthwhile spending the millions involved to have them recertified but did not (as Ermax pointed out earlier in this thread) feel there was a business case to do the ATs.


The tuner mentality is that you can do whatever you wish to a car whenever you want to do it. The manufacturers can not work that way. They are tightly controlled and must play by the rules. A couple of decimal points off in an emission reading means make or break for them.