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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 08-09-2017, 08:41 PM   #1
JCFRS
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Exhaust system, what next?

So I've currently installed my exhaust, running an (Invidia N1 Catback exhaust) was wondering in which order should I mod next between UEL headers/front pipe/overpipe. Moreover, what piece would show the largest change in terms of sound & performance. Planning on purchasing all of these parts in the future.
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Old 08-09-2017, 09:08 PM   #2
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UEL header. Lots more noise and performance with a tune
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Old 08-09-2017, 09:12 PM   #3
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From my understanding, I always go Catback then work your way to the front of the car.


Catback - Frontpipe - Overpipe/Headers.


The piece that will give you a noticeable Performance gain is the Headers since it will Eliminate or Reduce the infamous torque dip Drastically.
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Old 08-09-2017, 09:17 PM   #4
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Originally Posted by iExpLiziT View Post
From my understanding, I always go Catback then work your way to the front of the car.


Catback - Frontpipe - Overpipe/Headers.


The piece that will give you a noticeable Performance gain is the Headers since it will Eliminate or Reduce the infamous torque dip Drastically.
Wrong. Other way around. Power>Sound/aesthetics
So many people get catback first, then get a catless header to realize it's too loud and end up getting another catback.
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Old 08-09-2017, 09:21 PM   #5
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Wrong. Other way around. Power>Sound/aesthetics
So many people get catback first, then get a catless header to realize it's too loud and end up getting another catback.
Sound > Power.
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Old 08-09-2017, 11:28 PM   #6
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I'd plan everything in advance to prevent going down blind alleys. The Invidia N1 will be really loud when paired with a header, and different combinations of header, overpipe, front pipe, and cat-back exhausts can sound very different, so plan accordingly. I did my entire exhaust and tune at the same time, but if you can't do that then keep in mind that you can add the overpipe, front pipe, and cat-back exhaust without a tune, but you'll need a tune when you add a header - this sounds obvious, but it may factor in the order you do things.

My exhaust consists of:

- ACE 4-2-1 Type-A 350 equal length header (ceramic thermal coated)
- Motiv catted front pipe (ceramic thermal coated)
- Blitz Nür Spec R stainless steel exhaust
- EcuTek Pro ECU programming and datalogging kit
- Delicious Tuning - ECU reflash/stage 2

Good luck and have fun!
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