BBK LT headers in orange county - Page 2 - Ford Mustang Forum
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Will these cars with High Flow Cats and Longtubes not throw a code with the STOCK tune? The reason for me asking is that from what I have read, with High Flow Cats the O2 sensors have to be turned off in the tune. This might lead to failing the OBD2 emissions "readiness" test, the only way to pass being to put the car back to stock tune and hope it doesn't throw a code with the high flow cats and headers. Is this true?


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I have run mine on tunes that I got before I bought the headers/carted x-pipe so I guess the sensors were on. No codes. I'll try it stock for a day or two.


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Quote:
Originally Posted by powerwhee View Post
Ya with a catted x pipe it's not too bad. Most cops won't be able to tell the difference


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If a cop can squeeze their fat ass under my car, more power to 'em. I've never heard of a cop here checking though.

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Quote:
Originally Posted by Mana4Real View Post
It is safer to run a bigger shot with the NOSzle kit because it is direct port. But the motor being able to handle it is another story.
Not everyone! In my county there are no emission tests, no visual, no sniffer and no obdII testing. Hell we've passed inspection running open headers here.

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Quote:
Originally Posted by PW_Pony View Post
If a cop can squeeze their fat ass under my car, more power to 'em. I've never heard of a cop here checking though.

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They don't squeeze under the car they use a mirror hahaha


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They don't squeeze under the car they use a mirror hahaha


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Not sure our officers even know what a mirror is. We have some real winners.

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