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Firebird V6 Cat converter delete

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Old Nov 3, 2005 | 01:07 PM
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VeTtEgOfAsT84's Avatar
VeTtEgOfAsT84
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Firebird V6 Cat converter delete
I have a Firebird with a V6 and a cat back flowmaster exhaust system and headers. I wish to delete the cat and replace it with a straight pipe. Anyone know if i will need O2 sims or not? Any info is appreciated.
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Old Nov 3, 2005 | 01:23 PM
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6SpdLT1Z's Avatar
6SpdLT1Z
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Re: Firebird V6 Cat converter delete
I don't think so... the 02s are on the exhaust manifolds on my 94.
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Old Nov 3, 2005 | 01:40 PM
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Re: Firebird V6 Cat converter delete
What year is your car? The easy way to know is to look and see if you have a post-cat 02 sensor. If you do, then you will need a 02 sim. to avoid the SES light.
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Old Nov 3, 2005 | 03:32 PM
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VeTtEgOfAsT84's Avatar
VeTtEgOfAsT84
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Re: Firebird V6 Cat converter delete
Sorry guys, its a 1996.
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Old Nov 3, 2005 | 05:32 PM
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2000GTP
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Re: Firebird V6 Cat converter delete
I'm pretty sure then you have a post-cat 02 sensor. In that case, either run the 02 sim. or have the rear o2 code deleted out of the PCM via tuning.
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Old Nov 3, 2005 | 08:06 PM
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HBHRacing
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Re: Firebird V6 Cat converter delete
for a 96 you WILL need a simm or programing to prevent the code.
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Old Nov 3, 2005 | 11:51 PM
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deadmeat2004
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Re: Firebird V6 Cat converter delete
get a simm and call it gone.
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Old Nov 4, 2005 | 09:26 AM
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foff667
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From: Trenton, NJ
Re: Firebird V6 Cat converter delete
yeah he'll need a sim, but you wont see a large hp gain without deleting cot fueling at a minimum.
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