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I have several mods in my vette such as Granatelli MAF,Corsa Exhaust.BBK Headers,Vortex Cold Rammer.After I had bought the headers,the engine light appeared next day and the idle went wrong!!!I went to the service and they told me that the stock o2 sensors are out of order and i decided to eliminate the cats and also they added that the headers cannot accept the stock 02 sensors and the cats must be removed.What do you think?My car can't reply for the gas pedals commands!!!How Can I solve the problem?HELP ME PLEASE!!!!
Does not compute, O2 sensors out of order. You plug them back in to the same place and do not remove the cats. Removing the cats will cause error codes unless you you sims.