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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 10-03-2010, 01:24 PM   #1
Smoky10
 
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OBX headers and CATS

I just ordered the OBX headers off of ebay, I am pretty mechanically savy so I'm not concerned with the actual install what I am concerned with though is will I be able to use my stock CATS, and what all will I need to be able to use them? Also if I don't use them am I going to hurt anything or throw any codes for the little time that I drive my car until I can get it tuned?

Thanks in advance,

Brandon
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Old 10-03-2010, 01:28 PM   #2
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No, will need to weld in new cats
You could cut your cats out and use them but they dont flow to well..
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Old 10-03-2010, 01:32 PM   #3
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Ok one question at a time......lol

No there are no cats for the OBX headers. You can have the stock ones cut out and welded onto your exhaust but why.....kinda ruins the point of the headers. You can pick up high flow cats and have those welded into the exhaust. The other option is for you to buy the Kooks catted mid pipe. It will bolt directly to the OBX Headers. Yes you will throw a code after about 300 miles or so unless you buy the HHO 2" extenders from ebay. They will offset the rear O2 sensors enough that they read differently then the front ones and trick the computer into thinking the cats are still there. the other option is get a tune and you will never see the C.E.L.
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Old 10-03-2010, 01:46 PM   #4
Smoky10
 
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So I can have the cats removed buy the HHO rear extenders and install them and not have to worry about a code at all?
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Old 10-03-2010, 04:24 PM   #5
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Quote:
Originally Posted by Smoky10 View Post
So I can have the cats removed buy the HHO rear extenders and install them and not have to worry about a code at all?
Yes, that is what I did. Zero codes after 1000 miles. Sent you a PM...
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Old 06-27-2012, 03:34 AM   #6
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I am a newbie at the the new technology but I am doing exactly that throwing O2 codes running OBX headers but I am having a tough time finding the HHO extenders that actually say or verify use with the 2010 V6 camaro. Could you help me out finding the correct ones?
Or the ones that will guarantee to offset the codes.

Last edited by cory239; 06-27-2012 at 03:35 AM. Reason: Need to add info
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Old 06-27-2012, 12:17 PM   #7
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You don't need to do any welding to add cats to OBX headers. You can buy the OBX headers with cats or you can use the Kooks cats also. They bolt in and hook up to your stock exhaust.

Look HERE
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