EL vs UEL Headers - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Strat_FRS · 12-24-2021, 05:08 PM

Our latest build video looks at the difference between the 2 headers on our yet untuned 2022.

FlyingJett · 12-24-2021, 06:35 PM

It looks like +30hp is possible with a header + tune ... nice!

Brz-123 · 12-24-2021, 06:44 PM

Saw the video. Please keep making the brilliant content on the new platform. You are clearly focusing on the exhaust end rightly so as there are probably more gains to be had.

Also it will be great if you could do a video to measure the intake port sizes and try to put in the 2017+ manual car Red manifold and see if it makes any more power compared to the plastic manifold.

Sent from my SM-G781B using Tapatalk

SpectreRT · 12-24-2021, 07:01 PM

Quote:

Originally Posted by Strat_FRS

Our latest build video looks at the difference between the 2 headers on our yet untuned 2022.

Your content and contributions have been amazing. Thanks to you and your team!

soilent · 12-25-2021, 03:04 AM

Please do a Tomei UEL as well. I'd love to see what a better quality brand could do over the Borla you tried before.

PulsarBeeerz · 12-26-2021, 01:33 AM

Quote:

Originally Posted by FlyingJett

It looks like +30hp is possible with a header + tune ... nice!

How did you extrapolate that much of a gain?

ForeverCar · 12-26-2021, 02:32 AM

Thanks for sharing!

The comparison between the aftermarket headers is great. When comparing to stock, besides the header itself, the other variable is with & without catalytic converter, yes?

Lantanafrs2 · 12-26-2021, 11:15 AM

Nothing will make sense until the ecu can be tuned. I would also imagine that the tube diameters will be different on a dedicated aftermarket header.

Strat_FRS · 12-26-2021, 12:03 PM

Quote:

Originally Posted by Brz-123

Saw the video. Please keep making the brilliant content on the new platform. You are clearly focusing on the exhaust end rightly so as there are probably more gains to be had.

Also it will be great if you could do a video to measure the intake port sizes and try to put in the 2017+ manual car Red manifold and see if it makes any more power compared to the plastic manifold.

Sent from my SM-G781B using Tapatalk

We will be looking at the intake as well. Currently we have been prototyping an intake for the car to see what gains (if any) there are there so we will have that shortly. We will be working with the manifold as well.

Quote:

Originally Posted by SpectreRT

Your content and contributions have been amazing. Thanks to you and your team!

Not a problem. It's a platform I really enjoy and getting these details worked out is fun and can't wait to tie this all together with tuning.

Quote:

Originally Posted by soilent

Please do a Tomei UEL as well. I'd love to see what a better quality brand could do over the Borla you tried before.

Based on what I've seen (and tuning the gen1 with the Tomei UEL and Borla UEL) there are likely to be small differences between the 2 but once we have direct comparison data on the same car we will of course share.

Quote:

Originally Posted by Lantanafrs2

Nothing will make sense until the ecu can be tuned. I would also imagine that the tube diameters will be different on a dedicated aftermarket header.

Yes tuning will tie all this together. You can see how the torque dips and troughs move around as you change the headers - it is especially sensitive to header design in the torque dip area and you can see the engineers tuned the OEM header and ECU both to make improvements in that area specifically.

Quote:

Originally Posted by ForeverCar

Thanks for sharing!

The comparison between the aftermarket headers is great. When comparing to stock, besides the header itself, the other variable is with & without catalytic converter, yes?

Both aftermarket headers have been catless. The OEM headers are all original and unmodified. The secondary catalyst has always been left in place.

ForeverCar · 12-26-2021, 12:46 PM

I think it would be an interesting data point to test the stock header with primary catalytic converter delete compared to the aftermarket headers.

Lantanafrs2 · 12-26-2021, 01:27 PM

I'd bet an ace 150 would work well with the bigger motor.

Simmons · 12-26-2021, 05:44 PM

I installed a JDL UEL today.

Video rev from outside.

Video from inside the car.

Midnightsky · 12-26-2021, 06:06 PM

Quote:

Originally Posted by Simmons

I installed a JDL UEL today.

Sound clips please

Simmons · 12-26-2021, 08:22 PM

Quote:

Originally Posted by Midnightsky

Sound clips please

Added to my post.

12-24-2021, 05:08 PM	#1
Strat_FRS Member Join Date: Oct 2021 Drives: 2015 FRS for daily and track use Location: Vancouver, Canada Posts: 82 Thanks: 14 Thanked 204 Times in 51 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	EL vs UEL Headers Our latest build video looks at the difference between the 2 headers on our yet untuned 2022.

12-25-2021, 03:04 AM	#5
soilent Member Join Date: Jan 2014 Drives: 2022 BRZ Premium Location: New Orleans, LA Posts: 81 Thanks: 2 Thanked 22 Times in 14 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Please do a Tomei UEL as well. I'd love to see what a better quality brand could do over the Borla you tried before. Last edited by soilent; 12-26-2021 at 02:13 AM.

12-26-2021, 05:44 PM	#12
Simmons Senior Member Join Date: Jun 2012 Drives: 2024 GR86/ 2015 FRS Location: PA Posts: 961 Thanks: 306 Thanked 575 Times in 269 Posts Mentioned: 17 Post(s) Tagged: 0 Thread(s)	I installed a JDL UEL today. Video rev from outside. Video from inside the car. __________________ 2024 GR86 71 STR/ 2015 FRS 71 STX Sponsors Xero-Limit//Karcepts Last edited by Simmons; 12-26-2021 at 08:21 PM. Reason: videos added

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12-24-2021, 06:35 PM	#2
FlyingJett Member Join Date: Dec 2018 Drives: Scion frs Location: Latvia Posts: 26 Thanks: 11 Thanked 7 Times in 7 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	It looks like +30hp is possible with a header + tune ... nice!

12-24-2021, 06:44 PM	#3
Brz-123 Senior Member Join Date: Mar 2018 Drives: BRZ Location: UK Posts: 154 Thanks: 74 Thanked 80 Times in 59 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Saw the video. Please keep making the brilliant content on the new platform. You are clearly focusing on the exhaust end rightly so as there are probably more gains to be had. Also it will be great if you could do a video to measure the intake port sizes and try to put in the 2017+ manual car Red manifold and see if it makes any more power compared to the plastic manifold. Sent from my SM-G781B using Tapatalk

12-26-2021, 02:32 AM	#7
ForeverCar Member Join Date: Nov 2021 Drives: 2022 BRZ and some other cars Location: USA Posts: 63 Thanks: 37 Thanked 38 Times in 24 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks for sharing! The comparison between the aftermarket headers is great. When comparing to stock, besides the header itself, the other variable is with & without catalytic converter, yes?

12-26-2021, 11:15 AM	#8
Lantanafrs2 Senior Member Join Date: Jan 2018 Drives: 2013 frs red Location: South Florida Posts: 3,562 Thanks: 2,568 Thanked 3,126 Times in 1,680 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	Nothing will make sense until the ecu can be tuned. I would also imagine that the tube diameters will be different on a dedicated aftermarket header.

12-26-2021, 12:46 PM	#10
ForeverCar Member Join Date: Nov 2021 Drives: 2022 BRZ and some other cars Location: USA Posts: 63 Thanks: 37 Thanked 38 Times in 24 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I think it would be an interesting data point to test the stock header with primary catalytic converter delete compared to the aftermarket headers.

12-26-2021, 01:27 PM	#11
Lantanafrs2 Senior Member Join Date: Jan 2018 Drives: 2013 frs red Location: South Florida Posts: 3,562 Thanks: 2,568 Thanked 3,126 Times in 1,680 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	I'd bet an ace 150 would work well with the bigger motor.

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