Headers without a tune? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

liajet24 · 05-22-2014, 11:59 AM

I purchased the Borla UELs but I don't want to get a tune and void my warranty. Ft86speedfactory said it shouldn't be an issue, but I am a little worried that the engine might start running lean. Can I still run them for the next two years until my warranty runs out before getting a tune?

toyotaAlex · 05-22-2014, 12:07 PM

Buy the openflash tablet. Flash to the stage 2 Uel tune. If you need to go to the dealer for warranty use the oft to flash back to stock map. Takes 10mins to flash.

liajet24 · 05-22-2014, 12:17 PM

Quote:

Originally Posted by toyotaAlex

Buy the openflash tablet. Flash to the stage 2 Uel tune. If you need to go to the dealer for warranty use the oft to flash back to stock map. Takes 10mins to flash.

There is no flash counter? and is there a tune for my Borla UEL, Nameless DP/OP and TRD Ctback?

f0rge · 05-22-2014, 12:19 PM

Also curious about the flash counter, I know GM and Ford have been doing it for a few years now.

2pt5RS · 05-22-2014, 12:23 PM

It's an n/a car...you don't *need* a tune for performance parts. It will run just fine.

Malt · 05-22-2014, 12:34 PM

Quote:

Originally Posted by liajet24

There is no flash counter? and is there a tune for my Borla UEL, Nameless DP/OP and TRD Ctback?

Quote:

Originally Posted by f0rge

Also curious about the flash counter, I know GM and Ford have been doing it for a few years now.

I've heard about this mythical flash counter and I have yet to see any evidence for it. OP: minus a header, you don't need a specific tune for those as they don't do anything except add volume to your exhaust. The Stage 2 UEL tune from shiv will work fine for what you have.

Quote:

Originally Posted by 2pt5RS

It's an n/a car...you don't *need* a tune for performance parts. It will run just fine.

While you may not "need" a tune, depending on what you mod you may end up with worse performance, worse mileage, or a poorly running engine without tuning for the mods. Anyone suggesting running a catless header without tuning for it obviously does not know what they are talking about.

Digitalanalog · 05-22-2014, 12:41 PM

Quote:

Originally Posted by liajet24

I purchased the Borla UELs but I don't want to get a tune and void my warranty. Ft86speedfactory said it shouldn't be an issue, but I am a little worried that the engine might start running lean. Can I still run them for the next two years until my warranty runs out before getting a tune?

you dont want to void your warranty with tuning but you bought headers that removes emission equipment?

iAgui · 05-22-2014, 12:43 PM

I agree with Malt. Even if the mythical flash counter does exist, it's not something the dealer can just check on a whim. From what I understand, they have to send off your ECU to be inspected.

And at that point, something CATASTROPHIC must have happened, since the dealer is willing to go to such lengths in order to deny you warranty work.

I say buy an OpenFlashTablet, flash shiv's Stage 2 UEL Tune, and enjoy your ~25 more horses.

If needed, flash back to stock and remove your headers before having warranty work done.

SubiePig · 05-22-2014, 12:44 PM

6000 miles, 3 track days, and a bunch of autocrosses with JDL UEL catless headers, over pipe, catted front pipe, Invidia catback, and an O2 spacer for second sensor (with the occasional CEL but very rare) on stock ROM.

There was an improvement in power over stock, as much as with a tune? Surely not.

drewbot · 05-22-2014, 12:49 PM

You already voided your exhaust component warranty by installing Borla UELs....

To avoid any engine issues, you should get a tune for safe operation.

toyotaAlex · 05-22-2014, 03:14 PM

Quote:

Originally Posted by liajet24

There is no flash counter? and is there a tune for my Borla UEL, Nameless DP/OP and TRD Ctback?

Use the stage 2 uel tune. ALL TUNES INCLUDED FREE OF CHARGE!!!!!!
Best $500 I have ever spent on my car.

Xero-Limit · 05-22-2014, 03:18 PM

You definitely want a tune with a header. It will usually double (sometimes triple) the gains you get from header alone.

Migero86 · 05-22-2014, 03:20 PM

Header without the Tune is like Cereal without Milk.... It works, but works better with the other

.

Jolaessss · 05-22-2014, 09:14 PM

I ran the RevWork UEL for a few months with an O2 spacer and without a tune and still got a CEL. You're already voiding your warranty by replacing the headers.

I highly recommend getting a tune. You can probably get away without a tune, but not for very long. You risk running too lean and possibly blowing something

05-22-2014, 11:59 AM	#1
liajet24 Member Join Date: Aug 2013 Drives: Argento FRS Location: Canada Posts: 14 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Headers without a tune? I purchased the Borla UELs but I don't want to get a tune and void my warranty. Ft86speedfactory said it shouldn't be an issue, but I am a little worried that the engine might start running lean. Can I still run them for the next two years until my warranty runs out before getting a tune?

05-22-2014, 12:07 PM	#2
toyotaAlex Member Join Date: Jan 2014 Drives: 2013 Scion FR-S Auto- OFT Stage 2EL Location: Central Alberta, Canada Posts: 48 Thanks: 36 Thanked 24 Times in 10 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Buy the openflash tablet. Flash to the stage 2 Uel tune. If you need to go to the dealer for warranty use the oft to flash back to stock map. Takes 10mins to flash. __________________ 2013 Scion FR-S Auto, OFT Stage 2 Equal length 94oct, Hollowed out Factory Manifold, Stock Overpipe, Hollowed Front Pipe, Stock Midpipe with Resonator Removed, Custom Axleback with Single Exit and a Flowmaster 50series Muffler. Stock Airbox with all resonators removed, Snorkel shortened, TRD Panel Filter.

05-22-2014, 12:44 PM	#9
SubiePig Senior Member Join Date: Apr 2013 Drives: -'02 PSM WRX, '94 Miata, '13 BRZ Location: Lafayette, Louisiana Posts: 438 Thanks: 188 Thanked 155 Times in 112 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	6000 miles, 3 track days, and a bunch of autocrosses with JDL UEL catless headers, over pipe, catted front pipe, Invidia catback, and an O2 spacer for second sensor (with the occasional CEL but very rare) on stock ROM. There was an improvement in power over stock, as much as with a tune? Surely not. __________________ Sponsered by:Chasebays/Corr Performance Tuning/KartBoy/Bad Panda Motorsports/Racer-X Fabrication STX Build thread 14th/67 SCCA Nationals (2014)

05-22-2014, 09:14 PM	#14
Jolaessss Senior Member Join Date: May 2013 Drives: SWP FR-S Location: San Jose, CA Posts: 620 Thanks: 346 Thanked 172 Times in 114 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	I ran the RevWork UEL for a few months with an O2 spacer and without a tune and still got a CEL. You're already voiding your warranty by replacing the headers. I highly recommend getting a tune. You can probably get away without a tune, but not for very long. You risk running too lean and possibly blowing something __________________

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05-22-2014, 12:23 PM	#5
2pt5RS Berz Join Date: May 2012 Drives: 2013 BRZ Location: -=ATL=- Posts: 707 Thanks: 281 Thanked 294 Times in 158 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	It's an n/a car...you don't need a tune for performance parts. It will run just fine.

05-22-2014, 12:43 PM	#8
iAgui Member Join Date: Apr 2014 Drives: 2014 SWP Subaru BRZ Location: SoCal Posts: 24 Thanks: 1 Thanked 6 Times in 6 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	I agree with Malt. Even if the mythical flash counter does exist, it's not something the dealer can just check on a whim. From what I understand, they have to send off your ECU to be inspected. And at that point, something CATASTROPHIC must have happened, since the dealer is willing to go to such lengths in order to deny you warranty work. I say buy an OpenFlashTablet, flash shiv's Stage 2 UEL Tune, and enjoy your ~25 more horses. If needed, flash back to stock and remove your headers before having warranty work done.

05-22-2014, 12:49 PM	#10
drewbot ( ͡° ͜ʖ ͡°) Join Date: Sep 2013 Drives: '13 Whiteout FR-S A/T Location: Mississauga, ON Posts: 1,996 Thanks: 1,985 Thanked 1,452 Times in 752 Posts Mentioned: 36 Post(s) Tagged: 1 Thread(s)	You already voided your exhaust component warranty by installing Borla UELs.... To avoid any engine issues, you should get a tune for safe operation.

05-22-2014, 03:18 PM	#12
Xero-Limit Join Date: Nov 2012 Drives: JDL Turbo FRS, 335SC BRZ (ret) Location: Lehigh Valley, PA Posts: 938 Thanks: 368 Thanked 1,550 Times in 527 Posts Mentioned: 380 Post(s) Tagged: 6 Thread(s)	You definitely want a tune with a header. It will usually double (sometimes triple) the gains you get from header alone.

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