Basic exhaust question - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

JeremyBarrett · 01-17-2018, 11:51 PM

Hey guys this is my first time posting in the forum and just need some basic information, I'm looking to get headers and a tune this spring and my question for you guys is if I go with catless headers will I throw a code and if so what will the code be? right now I have the spec d cat back exhaust and love it but am looking for a low end hp and torque gain thanks in advance.

cjd · 01-18-2018, 12:17 AM

The tune will usually take care of the code.

RJasonKlein · 01-18-2018, 01:48 AM

You’ll need a tune to prevent the ECU from reporting a code. Welcome to the forum, by the way!

KMA KiCKz · 01-18-2018, 04:18 AM

Going catless headers will throw a code regarding to the O2 sensors or something relating to it, but a tune will take care of that problem easily. I recommend the OFT as a great entry level of tuning.

churchx · 01-18-2018, 04:44 AM

catted aftermarket headers are not 100% sure way to never have cat efficiency CELs either. (and due that imho even more makes sense going for catless header + stock 2ndary cat for higher overall gains, if ecu tune is needed anyway).

Dr. BRZ · 01-18-2018, 06:38 AM

Another new lazy member. If only people actually took the time to research first, they would see so many questions they have, have been answered already. ...

BirdTRD · 01-18-2018, 08:12 AM

Best way to search the forum for specific information is to NOT use the built in search function, instead use Google with "site:ft86club.com/forums" in front of your search term(s).

Example: site:ft86club.com/forums catless cel

Teseo · 01-18-2018, 09:04 AM

I use "whatever shit question i have " ft86club. The problem is most pics are broken

BirdTRD · 01-18-2018, 09:19 AM

Quote:

Originally Posted by Teseo

I use "whatever shit question i have " ft86club. The problem is most pics are broken

Yeah, we have Photobucket to thank for that! Bastards!

It would be really great if everyone who posted pics hosted in photobucket would move over to Imgur and edit their posts with a new link to those pics....

01-17-2018, 11:51 PM	#1
JeremyBarrett Junior Member Join Date: Jul 2017 Drives: 2014 Scion FRS Raven Black Location: Cobourg Ontario, Canada Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Basic exhaust question Hey guys this is my first time posting in the forum and just need some basic information, I'm looking to get headers and a tune this spring and my question for you guys is if I go with catless headers will I throw a code and if so what will the code be? right now I have the spec d cat back exhaust and love it but am looking for a low end hp and torque gain thanks in advance. Attached Images

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01-18-2018, 01:48 AM	#3
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)	You’ll need a tune to prevent the ECU from reporting a code. Welcome to the forum, by the way!

01-18-2018, 04:18 AM	#4
KMA KiCKz Certified Wumbologist Join Date: Dec 2017 Drives: 2015 Scion FR-S Location: San Jose, California Posts: 286 Thanks: 622 Thanked 386 Times in 164 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Going catless headers will throw a code regarding to the O2 sensors or something relating to it, but a tune will take care of that problem easily. I recommend the OFT as a great entry level of tuning.

01-18-2018, 04:44 AM	#5
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,334 Thanks: 698 Thanked 2,086 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	catted aftermarket headers are not 100% sure way to never have cat efficiency CELs either. (and due that imho even more makes sense going for catless header + stock 2ndary cat for higher overall gains, if ecu tune is needed anyway).

01-18-2018, 09:04 AM	#8
Teseo Senior Member Join Date: Jun 2014 Drives: frs Location: Gunsai Posts: 4,952 Thanks: 7,466 Thanked 2,980 Times in 1,802 Posts Mentioned: 23 Post(s) Tagged: 2 Thread(s)	I use "whatever shit question i have " ft86club. The problem is most pics are broken

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