i fabed up a new exhaust for my black top
i all ready had 2.5 from the rear to the cat and it was standed from the cat to the engine
what i have done is remove the cat and go with 2.5 all the way to the turbo outlet
my question is: there is a sensor after the cat, what is this sensor? and should it still be in the exhaust now that the cat is removed?
i currently have the sensor in