Stock Header Question - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

wootwoot · 12-21-2012, 10:59 PM

Can you replace the primary cat in the stock header? I ask because I plan on getting a tune, and I think leaning out the AFR will shorten the life span of the primary cat. Just wanting to make sure I can change it down the line if need be.

Jesse · 12-21-2012, 11:40 PM

i believe the first cat is a part of the manifold.

wootwoot · 12-21-2012, 11:47 PM

Quote:

Originally Posted by Jesse

i believe the first cat is a part of the manifold.

That's what I was afraid of. My gen 2 MR2 was the same. When the primary cat went out it was big money to replace.....

FR-S Matt · 12-21-2012, 11:48 PM

Should replace the header if you intend on tuning the car. No reason to run something more restrictive.

wootwoot · 12-22-2012, 12:06 AM

Quote:

Originally Posted by FR-S Matt

Should replace the header if you intend on tuning the car. No reason to run something more restrictive.

I agree. But I am not happy with the header options. The AP is losing power on most dynos. And the JL is way too expensive. Maybe the Borla units will be good performers...

FR-S Matt · 12-22-2012, 10:48 AM

Quote:

Originally Posted by wootwoot

I agree. But I am not happy with the header options. The AP is losing power on most dynos. And the JL is way too expensive. Maybe the Borla units will be good performers...

More headers will be showing up to the market. Perrin and Nameless haven't given their final designs yet. Borla is one of the best choices currently due to price and proven performance and a nice UEL design. I'm going to wait and see what Perrin and Nameless do before I jump the gun. The car is still so new that they are still tweaking results and fabricating different designs till they get what they want.

Calum · 12-22-2012, 12:46 PM

Quote:

Originally Posted by wootwoot

That's what I was afraid of. My gen 2 MR2 was the same. When the primary cat went out it was big money to replace.....

Or just punch it out and carry on as if you were normal.

Calum · 12-22-2012, 12:49 PM

Quote:

Originally Posted by FR-S Matt

Should replace the header if you intend on tuning the car. No reason to run something more restrictive.

Even the best options are only picking up 5-6 hp, maybe 8-10. With so many parts looming not too far away, there's plenty of reason to run the stock unit for now.

Grip Ronin · 12-23-2012, 12:21 PM

someone told me borlas use to have poor welds and crack over a short time. on the exhaust systems. im not to quick to invest in there header until miles are put on them from someone

mashal · 12-23-2012, 12:23 PM

Quote:

Originally Posted by Grip Ronin

someone told me borlas use to have poor welds and crack over a short time. on the exhaust systems. im not to quick to invest in there header until miles are put on them from someone

Where have you heard such a thing ? I have friends that have been running borlas for year, no problems

bdi · 12-23-2012, 08:55 PM

Quote:

Originally Posted by Grip Ronin

someone told me borlas use to have poor welds and crack over a short time. on the exhaust systems. im not to quick to invest in there header until miles are put on them from someone

Isolated case that happen many many years ago. Regardless, they took care of the problem quickly as all their parts have 1 million mile warranties. Something you wont get from pretty much any other company...

liquidsky44 · 12-24-2012, 12:59 AM

Have anybody try retaining the stock headers but remove the cat?

Grip Ronin · 12-24-2012, 06:24 PM

Quote:

Originally Posted by bdi

Isolated case that happen many many years ago. Regardless, they took care of the problem quickly as all their parts have 1 million mile warranties. Something you wont get from pretty much any other company...

good to know

12-21-2012, 10:59 PM	#1
wootwoot Senior Member Join Date: Jul 2012 Drives: FRS Location: Cali Posts: 1,558 Thanks: 188 Thanked 462 Times in 264 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Stock Header Question Can you replace the primary cat in the stock header? I ask because I plan on getting a tune, and I think leaning out the AFR will shorten the life span of the primary cat. Just wanting to make sure I can change it down the line if need be.

12-21-2012, 11:40 PM	#2
Jesse wheel gap Join Date: Jun 2012 Drives: whiteout frs, 04 xrs Location: MA Posts: 555 Thanks: 460 Thanked 249 Times in 153 Posts Mentioned: 11 Post(s) Tagged: 1 Thread(s)	i believe the first cat is a part of the manifold. __________________ http://www.ft86club.com/forums/showthread.php?t=20039 - journal --- http://www.flickr.com/photos/29438365@N04/

12-23-2012, 12:21 PM	#9
Grip Ronin The Mechanic Join Date: Mar 2012 Drives: Civic Turbo,FR-S Location: NJ Posts: 928 Thanks: 130 Thanked 171 Times in 119 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	someone told me borlas use to have poor welds and crack over a short time. on the exhaust systems. im not to quick to invest in there header until miles are put on them from someone __________________ IG-Joey_Soul Progress Thread Ported billet 20G

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12-24-2012, 12:59 AM	#12
liquidsky44 Senior Member Join Date: Jul 2012 Drives: AVO Turbo Subaru BRZ / Subaru WRX Location: Singapore Posts: 127 Thanks: 53 Thanked 19 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	Have anybody try retaining the stock headers but remove the cat?

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