will it hurt my truck to gut the catalytic converters
Jul 16, 2008 at 3:10 PM
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2CARPRO JACK
CERTIFIED EXPERT
11,533 POSTS
You will have a check engine light until you replace them. The o2 sensors at the rear of the cats measure efficiency, with them gutted the PCM will set a cat efficiency code, P0420 I believe, but other than that it wont hurt anything, it will fail smog as well