Quote Originally Posted by SJorge3442 View Post
The pre o2's can be done without removing anything from the bottom of the car. I did them both last year. Was it a headache? Absolutely. Would i want to do it again? Hell no!
How in God’s name did you remove the driver’s side pre cat O2 sensor w/o umbolting downpipe? Are you sure you aren’t mistaking the pre for post cat sensor? I just replaced this sensor last week and see no way possible to get a 22mm on it while in place. You must have some magic jujitsu special obstruction wrench. Please do tell. I didn’t have to drop the subframe, but removed the driver’s axle and heat shield to lower downpipe into a position to get a wrench on the 02 sensor. Took 5 hours for one miserable 02 sensor.


Sent from my iPhone using Tapatalk