High Flow Cat
04-15-2006, 06:17 PM
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High Flow Cat
Hey has anyone put on a highflow cat? I heard the stock cat is very restrictive, Also if you have upgraded did you get a Cel? I was thinking about this high flow performance cat, think its good?
http://www.sfxperformance.com/parts/PAC800026.htm
http://www.sfxperformance.com/parts/PAC800026.htm
Last edited by FRIARPOP; 04-16-2006 at 01:55 AM.
04-16-2006, 01:43 AM
#2
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High flow cats are restrictive because it's a catalytic converter...that's its job but it's less restrictive than your stock one. I would only suggest getting one if you're upgrading the rest of your exhaust and keeping the diameter the same (example: 2 1/4" cat-back piping, so you would get a 2 1/4" diameter catalytic converter).
As far as CEL with the Cobalts, I don't know.
As far as CEL with the Cobalts, I don't know.
04-16-2006, 01:57 AM
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right i plan on upgrading my exhaust to a custom or corsa 2.5'' so i figured i would need a 2.5'' catlalytic converter. Anyone recommend a certain brand?
04-16-2006, 02:14 AM
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Originally Posted by FRIARPOP
right i plan on upgrading my exhaust to a custom or corsa 2.5'' so i figured i would need a 2.5'' catlalytic converter. Anyone recommend a certain brand?
04-16-2006, 03:24 AM
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I really like my dynomax
http://www.a-1performance.com/super_...converters.htm
or
www.dynomax.com and then go to master catalogue
http://www.a-1performance.com/super_...converters.htm
or
www.dynomax.com and then go to master catalogue
04-16-2006, 11:30 AM
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I just can't beleive the factory cat is so bad. You want to see awful catalytic converters? Look at car from the mid 70's. Now those were restrictive!
04-16-2006, 11:36 AM
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Originally Posted by NJHK
I'm assuming you want 2 1/2" for boost (looking at your other post), if you're not, than 2 1/2" is too big for an n/a setup.
Why would it be too big? i plan on upgrading to a 2.5 exhaust wouldnt i need to upgrade the cat as well? or would i not have enough back pressure? Im not saying the old cat is crappy or anything i heard it true airflow is around 2'' .
04-16-2006, 06:26 PM
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Originally Posted by FRIARPOP
Why would it be too big? i plan on upgrading to a 2.5 exhaust wouldnt i need to upgrade the cat as well? or would i not have enough back pressure? Im not saying the old cat is crappy or anything i heard it true airflow is around 2'' .
04-16-2006, 10:08 PM
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Check this Thread
This is the link to a thread that I posted about a direct bolt in replacement high flow cat from Random Technology. It's not yet avaible but is supposed to be in the works. The 2.2L has a much more restictive cat than the 2.0L. The 2.2L cat has an outlet that measures just under 2.0".
https://www.cobaltss.net/forums/general-cobalt-68/2-0-2-2-2-4-high-flow-catalytic-converter-16263/
https://www.cobaltss.net/forums/general-cobalt-68/2-0-2-2-2-4-high-flow-catalytic-converter-16263/
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