i have put sensor deletes on bank 1 & 2 sensor twos.i am getting bank 1 & 2 sensor 1 slow response codes.i do have a programmer on the car.
i have put long tube headers on and got rid of the cats. on 2001 Ford Mustang GT
Yikes! you need the catalytic convertors and sensors
you dont use cats with long tube headers you use an x pipe.thats why i have sensor deletes on sensor twos.having a problem with sensor ones.slow response code.need someone that knows racing app!