Ford Mustang Forum - View Single Post - Tune that deletes rear o2's?
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post #6 of (permalink) Old 01-17-2016 Thread Starter
Twiztids4's Avatar
Joined: Jan 2016
Posts: 4
I guess I'll have to put the cats back on. I just don't understand how my Audi and Silverado both have tunes to delete the rear o2's and they pass inspection every year...
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