Ford Mustang Forum - View Single Post - Drive cycle & Rejected emissions - help!
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post #7 of (permalink) Old 03-04-2016
Stella09
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Joined: Jul 2014
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Quote:
Originally Posted by dondino View Post
I'd like to know this as well. From what I've read they do not turn off O2's in the rear unless you specify off-road mid pipe, which I have not.
I was running long tubes and catted H and they were off in my race tune. I didn't request them to be turned off. The race tune is supposed to be more for off road use so I could see them turning them off by default.

2009 GT - Eibach Pro Kit Springs & front and rear sway bars | Tokico D-Spec | BMR panhard | Steeda control arms | ARH LT's w/ catted H | Borla ATAK | 2.3L Whipple | To Install - Mcleod RXT & Flywheel | DivisionX return style fuel system | ID1000 | Yet to Buy - Back to the drawing board...
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