I was just wondering if anyone knew what size wrench the Oxygen Sensor is? I did a search and could'nt find out anything im about to install a carsound cat. Thanks in advance for any info..

 

22mm

 

Thanks everyone 22mm it is I appreciate it..

 

take the cat all the way off the car. remove that little blue plug where the o2 sensor wires go up into the car and there is a plug up there. when the cat is off the car you'll need an open ended 22mm wrench to get the o2 sensor out.