Did 93 Sierras come wth true dual exhaust?
no and yes there not true duals meaning off the headers back to rear of the truck but they do have it where it comes off the headers into a y pipe which puts it in a 3 inch pipe then normally goes to ur cat and then to a muffler which then goes to duals from there
when i bought my truck i guess it t didnt have cats (found that out when i took it to an exhaust shop and they said no i put the exhaust on at home lol) but it had true duals and no o2 sensors are hooked up should i rig some in or just leave it?
well there are no o2 sensors on the 93 and do away with the cats there pointless here in ohio bc we dont have e checks but cant say that cuz i dont know where u live
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