Sorry 180. I forgot to mention that we tried to remove just the stem but it cracked the base of the sensor too in the process. The guy at the service center actually knew about the crossfire too, and even he was surprised he couldn't remove the stem due to the corroded metal. It's ok with me though, I have a new sensor in now at least, so when the other 3 go due to their batteries, itll be cheaper overall hahahah :P