Exhaust Re-tune - Turbo - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ScrubNubbyBRZ · 08-27-2020, 08:11 PM

Hi Guys,

I recently installed a Turbo Kit on my BRZ and got it tuned. I did not get the chance to have an aftermarket exhaust installed with the turbo due to financial restrictions at the time

.

However, for future, will I need a re-tune if I installed aftermarket exhaust (overpipe, front pipe, catback exhaust) after the fact?

I know that a re-tune is recommended to get the most, but will it be safe to drive? Has anyone had any issues?

I tried to find answers in the forum but I only found this: https://www.ft86club.com/forums/show...exhaust+retune

Just wanted to make sure.

Thanks a bunch!

DarkPira7e · 08-27-2020, 08:14 PM

I wouldn't bother. A re-tune would just be to take advantage of the extra breathing room- it won't affect the tune negatively

Joveen · 08-27-2020, 09:56 PM

Only return for major things. Like new injectors, fuel pump etc.

Sent from my SM-N960U using Tapatalk

86TOYO2k17 · 08-27-2020, 10:14 PM

If you are custom E-tune minor revisions are 50-100$ not paying for an entire new complex tune. Is 50-100$ worth maybe 1-2% more optimized tune? Up to you.

ScrubNubbyBRZ · 08-28-2020, 12:29 AM

Thanks guys, much appreciated!

Just worried it might provide an issue with the current tune. Looks like it wont.

jflogerzi · 08-28-2020, 02:09 AM

Monitor your afr and fuel trims. If they look out of wack then get an adjustment. If not don't worry bout it

Sent from my GM1915 using Tapatalk

Sportsguy83 · 08-28-2020, 10:12 AM

Quote:

Originally Posted by ScrubNubbyBRZ

Hi Guys,

I recently installed a Turbo Kit on my BRZ and got it tuned. I did not get the chance to have an aftermarket exhaust installed with the turbo due to financial restrictions at the time

.

However, for future, will I need a re-tune if I installed aftermarket exhaust (overpipe, front pipe, catback exhaust) after the fact?

I know that a re-tune is recommended to get the most, but will it be safe to drive? Has anyone had any issues?

I tried to find answers in the forum but I only found this: https://www.ft86club.com/forums/show...exhaust+retune

Just wanted to make sure.

Thanks a bunch!

I would recommend a retune. You will be having less back pressure and possibly make more boost with the higher flowing exhaust (not tasing about major change, but some more).

Why chance it? given you are adding boost to a factory NA engine, best be safe.

CSG Mike · 08-28-2020, 01:38 PM

If you're increasing flow, you're changing how the boost is delivered.

100% should get a retune, or at the bare minimum, evaluation.

pallen · 08-28-2020, 03:07 PM

Quote:

Originally Posted by 86TOYO2k17

If you are custom E-tune minor revisions are 50-100$ not paying for an entire new complex tune. Is 50-100$ worth maybe 1-2% more optimized tune? Up to you.

This. Talk to your previous tuner. If you're using ecutek, they will have access to the old tune and can just tweak it vs someone else having to start from scratch. They may charge a much lower rate to just make minor adjustments.

08-27-2020, 08:11 PM	#1
ScrubNubbyBRZ Junior Member Join Date: Aug 2020 Drives: BRZ Location: My House Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Exhaust Re-tune - Turbo Hi Guys, I recently installed a Turbo Kit on my BRZ and got it tuned. I did not get the chance to have an aftermarket exhaust installed with the turbo due to financial restrictions at the time . However, for future, will I need a re-tune if I installed aftermarket exhaust (overpipe, front pipe, catback exhaust) after the fact? I know that a re-tune is recommended to get the most, but will it be safe to drive? Has anyone had any issues? I tried to find answers in the forum but I only found this: https://www.ft86club.com/forums/show...exhaust+retune Just wanted to make sure. Thanks a bunch!

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08-27-2020, 08:14 PM	#2
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,932 Thanks: 3,199 Thanked 4,095 Times in 2,045 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	I wouldn't bother. A re-tune would just be to take advantage of the extra breathing room- it won't affect the tune negatively

08-27-2020, 09:56 PM	#3
Joveen Senior Member Join Date: Mar 2018 Drives: Bone stock Location: Windsor, CT Posts: 767 Thanks: 535 Thanked 232 Times in 162 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Only return for major things. Like new injectors, fuel pump etc. Sent from my SM-N960U using Tapatalk

08-27-2020, 10:14 PM	#4
86TOYO2k17 Senior Member Join Date: Jan 2018 Drives: 2017 toyota 86 Location: PNW Posts: 2,131 Thanks: 336 Thanked 1,188 Times in 781 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	If you are custom E-tune minor revisions are 50-100$ not paying for an entire new complex tune. Is 50-100$ worth maybe 1-2% more optimized tune? Up to you.

08-28-2020, 12:29 AM	#5
ScrubNubbyBRZ Junior Member Join Date: Aug 2020 Drives: BRZ Location: My House Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks guys, much appreciated! Just worried it might provide an issue with the current tune. Looks like it wont.

08-28-2020, 01:38 PM	#8
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,530 Thanks: 8,918 Thanked 14,175 Times in 6,834 Posts Mentioned: 966 Post(s) Tagged: 14 Thread(s)	If you're increasing flow, you're changing how the boost is delivered. 100% should get a retune, or at the bare minimum, evaluation.

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