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Old 10-05-2018, 08:17 AM   #6
nancygrl
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Drives: '22 Z71 RST Silverado
Join Date: Feb 2011
Location: South
Posts: 3,415
On my last 5th gen Camaro SS, I had a roto-fab cai, long-tube headers, hi-flow cats, cat-back system, and turned off reporting on the O2 sensors in my tune, so it wouldn't throw any CEL's. Always passed without any issues.
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