98 chevy 1500 4x4 sle changing out the muffler do you need the oxygen sensor?
doyou need the oxygen sensors to keep the truck running when I change out the muffler? or can I remove them and the catalytic muffler?
doyou need the oxygen sensors to keep the truck running when I change out the muffler? or can I remove them and the catalytic muffler?
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