Catless Headers CEL?? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

kzale1249 · 01-17-2016, 04:01 AM

Hi guys, I'm planning to get a catless headers (possibly tomei uel) combined with Berk catted front pipe and a invidia n1 catback. Will the CEL light come on due to that fact that the headers are catless?

Please reply, thanks a lot!

JB86'd · 01-17-2016, 07:36 AM

Yeah, unless you get a proper tune.

Or an 02 spacer. (Not the best option)

wise345 · 01-17-2016, 07:43 PM

Maybe not right away but it will. A tune is a definite fix. You could get an 02 spacer but they don't always work

seant2h · 01-17-2016, 10:28 PM

I have not yet tuned my car and never tried a spacer and my experience is that when I had a borla el installed I would get a cel every 1000 or so miles and now I've had a JDL UEL installed for 3000+ miles and it has yet to throw a CEL and I have this hooked up to a nameless catted op/fp and q300.

go_a_way1 · 01-17-2016, 10:31 PM

Yes like said above you will 100% get a CEL.

My advise would be do not install your header until you have cash to tune. Do both at the same time.

FRSBRZGT86FAN · 01-17-2016, 10:45 PM

Quote:

Originally Posted by kzale1249

Hi guys, I'm planning to get a catless headers (possibly tomei uel) combined with Berk catted front pipe and a invidia n1 catback. Will the CEL light come on due to that fact that the headers are catless?

Please reply, thanks a lot!

As everyone else said you will get some code like P0420 or P0421 or something similar because of the O2 sensors after where the cat would have been reading different values than stock. A tune will disable those codes and allow "emissions readiness", and in some jurisdictions like here in buck county PA without a visual check you will pass inspection.

kzale1249 · 01-17-2016, 11:47 PM

Quote:

Originally Posted by go_a_way1

Yes like said above you will 100% get a CEL.

My advise would be do not install your header until you have cash to tune. Do both at the same time.

Do you know of any tune that would work best? Would open flash tablet work? I'm fairly new to these stuff. Or there are other tunes that you would recommend.

go_a_way1 · 01-17-2016, 11:51 PM

Quote:

Originally Posted by kzale1249

Do you know of any tune that would work best? Would open flash tablet work? I'm fairly new to these stuff. Or there are other tunes that you would recommend.

If your new to it go open flash table it will probably be easier for you. Do a little reading on here first. Personally I run ECU Tek

Ashikabi · 01-17-2016, 11:56 PM

Ecutek or open flash tablet

witz · 01-21-2016, 08:32 PM

https://www.privatelabelmfg.com/prod...el-fix-adj.htm

this should work

steve99 · 01-21-2016, 09:13 PM

Quote:

Originally Posted by kzale1249

Do you know of any tune that would work best? Would open flash tablet work? I'm fairly new to these stuff. Or there are other tunes that you would recommend.

For a car with just basic mods like header oft will be fine
Device comes with free tunes for variety of mods and petrol 91 93 and e85 tunes

Its readly good if you dont have a local tuner as you flash you own tunes.

If you do have a local tuner then ecutek is about same price as you wont need the cable

See basic bolt on mods link below

wise345 · 01-21-2016, 10:59 PM

Quote:

Originally Posted by steve99

For a car with just basic mods like header oft will be fine
Device comes with free tunes for variety of mods and petrol 91 93 and e85 tunes

Its readly good if you dont have a local tuner as you flash you own tunes.

If you do have a local tuner then ecutek is about same price as you wont need the cable

See basic bolt on mods link below

theres several tuners near me. what exactly would i need if i went ecutek? i have the same issue

steve99 · 01-21-2016, 11:13 PM

Quote:

Originally Posted by wise345

theres several tuners near me. what exactly would i need if i went ecutek?

Talk to the local tuner to see if pricing competitive
They should be albe to do NA tune and licience for about 600 thats for flash and go tunHave all your mods installed or talk to thner re mods

All you will need is money

Ashikabi · 01-21-2016, 11:18 PM

I got my tunes from Delicious. Never have to pay for dyno time, they already know what changes need made for what mods. They claim putting it on a dyno would only net a couple more horsepower

01-17-2016, 07:36 AM	#2
JB86'd Senior Member Join Date: Oct 2013 Drives: JAWS Location: socal Posts: 703 Thanks: 753 Thanked 437 Times in 224 Posts Mentioned: 27 Post(s) Tagged: 1 Thread(s)	Yeah, unless you get a proper tune. Or an 02 spacer. (Not the best option) __________________

01-17-2016, 10:28 PM	#4
seant2h Senior Member Join Date: Jan 2015 Drives: 2013 BRZ 6MT LTD Location: 18951 Posts: 165 Thanks: 14 Thanked 52 Times in 25 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I have not yet tuned my car and never tried a spacer and my experience is that when I had a borla el installed I would get a cel every 1000 or so miles and now I've had a JDL UEL installed for 3000+ miles and it has yet to throw a CEL and I have this hooked up to a nameless catted op/fp and q300. __________________

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01-17-2016, 07:43 PM	#3
wise345 Slow I am, boost I must.. Join Date: Dec 2015 Drives: Whiteout 2013 FRS Location: Cleburne TX Posts: 309 Thanks: 66 Thanked 41 Times in 36 Posts Mentioned: 0 Post(s) Tagged: 2 Thread(s)	Maybe not right away but it will. A tune is a definite fix. You could get an 02 spacer but they don't always work

01-17-2016, 11:56 PM	#9
Ashikabi Senior Member Join Date: Aug 2014 Drives: 2013 FR-S Location: Northwest Iowa Posts: 7,359 Thanks: 454 Thanked 4,549 Times in 2,950 Posts Mentioned: 59 Post(s) Tagged: 5 Thread(s)	Ecutek or open flash tablet

01-21-2016, 08:32 PM	#10
witz Banned Join Date: May 2012 Drives: all mine Location: sf bay area Posts: 412 Thanks: 4 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	https://www.privatelabelmfg.com/prod...el-fix-adj.htm this should work

01-21-2016, 11:18 PM	#14
Ashikabi Senior Member Join Date: Aug 2014 Drives: 2013 FR-S Location: Northwest Iowa Posts: 7,359 Thanks: 454 Thanked 4,549 Times in 2,950 Posts Mentioned: 59 Post(s) Tagged: 5 Thread(s)	I got my tunes from Delicious. Never have to pay for dyno time, they already know what changes need made for what mods. They claim putting it on a dyno would only net a couple more horsepower

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