Exhaust system, what next? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

JCFRS · 08-09-2017, 08:41 PM

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.

tyler_win_photo · 08-09-2017, 09:08 PM

UEL header. Lots more noise and performance with a tune

iExpLiziT · 08-09-2017, 09:12 PM

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.

swarb · 08-09-2017, 09:17 PM

Quote:

Originally Posted by iExpLiziT

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.

ajh88 · 08-09-2017, 09:21 PM

Quote:

Originally Posted by swarb

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.

RJasonKlein · 08-09-2017, 11:28 PM

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!

08-09-2017, 08:41 PM	#1
JCFRS Member Join Date: May 2017 Drives: 2016 Asphalt Scion FRS Location: Fremont, CA Posts: 87 Thanks: 14 Thanked 6 Times in 6 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	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.

08-09-2017, 09:08 PM	#2
tyler_win_photo Senior Member Join Date: Dec 2013 Drives: 2014 Scion FRS (Asphalt) Location: Redmond, WA Posts: 559 Thanks: 39 Thanked 173 Times in 143 Posts Mentioned: 6 Post(s) Tagged: 2 Thread(s)	UEL header. Lots more noise and performance with a tune __________________ AVO Stage 2 Turbo Build Thread https://wheelwell.com/tyler-nguyen-1...014-scion-fr-s

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08-09-2017, 09:12 PM	#3
iExpLiziT Junior Member Join Date: Jul 2015 Drives: 2015 Asphalt Scion FR-S Location: Houston Texas Posts: 7 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	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.

08-09-2017, 11:28 PM	#6
RJasonKlein Senior Member Join Date: Jul 2014 Drives: 2013 Scion FR-S 10 Series Location: Clarendon Hills, IL Posts: 617 Thanks: 442 Thanked 356 Times in 202 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	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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