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Old Nov 19, 2015 | 09:22 AM
  #1  
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Default Catalytic Converter Question

Hey guys,
First post on this thread and a noob to the forum.
Long story short is my cats have failed and I dont know if I should get stock used cats or get something else like Berk HFC.
Money is kind of tight right now so I need some advice on which road I should take.

Also this will be going on a stock 2003 350z exhaust because the previous owner decided to weld the stock cats onto a cheap aftermarket exhaust.

Thanks guys

-Chris
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Old Nov 19, 2015 | 09:24 AM
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Oem cats are aeound 200. HFC are about 350. If money is tight, just go with oem.

But with used parts, theres a chance of it failing again. Personally i would save up and go with the hfc.
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Old Nov 19, 2015 | 09:26 AM
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check the classified section for some used ones for now

boom

https://my350z.com/forum/exhaust/607...omponents.html

(might want to confirm they came from a 03-06)

Last edited by travlee; Nov 19, 2015 at 09:32 AM.
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Old Nov 19, 2015 | 05:42 PM
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Chris, being that you're in California, be wary of trying to get HFCs past the visual inspection when going in for bi-annual smog.

You might, you might not pass because technically speaking aftermarket cats are NOT legal unless certified by CARB. To my present knowledge, no high flow units are legal for substitution. (I welcome anyone pointing me in the direction of any that ARE exempted by CARB.)

And yes, that's regardless of sniffer results. There was another forum member recently who got a refuse-to-test due to aftermarket plenum spacer even though it was likely he would have passed the sniffer.

The main question: Is the ever-so-slight uptick in horsepower worth the hassle? (I know people who put the OEMs back in for testing then remove once done.) Only you can decide that.

Given that, I'd stick with OEM.
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Old Nov 19, 2015 | 06:10 PM
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Originally Posted by travlee
check the classified section for some used ones for now

boom

https://my350z.com/forum/exhaust/607...omponents.html

(might want to confirm they came from a 03-06)
Definitely saw this the day it went up and gave him a quick call but no response. Sent over a message so fingers crossed. Thanks!
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Old Nov 19, 2015 | 06:12 PM
  #6  
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Originally Posted by MicVelo
Chris, being that you're in California, be wary of trying to get HFCs past the visual inspection when going in for bi-annual smog.

You might, you might not pass because technically speaking aftermarket cats are NOT legal unless certified by CARB. To my present knowledge, no high flow units are legal for substitution. (I welcome anyone pointing me in the direction of any that ARE exempted by CARB.)

And yes, that's regardless of sniffer results. There was another forum member recently who got a refuse-to-test due to aftermarket plenum spacer even though it was likely he would have passed the sniffer.

The main question: Is the ever-so-slight uptick in horsepower worth the hassle? (I know people who put the OEMs back in for testing then remove once done.) Only you can decide that.

Given that, I'd stick with OEM.
This was very helpful thank you!
Will probably go with some OEM cats
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Old Nov 22, 2015 | 09:15 AM
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Makes me so glad I dont live in a CARB state...
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Old Nov 22, 2015 | 02:14 PM
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may be out of town for the holiday
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Old Nov 22, 2015 | 02:29 PM
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http://www.kinetixracing.com/kinetix...onverters.aspx

I got 49 states but California ain't one.
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