Bluehawk27

So in the shuffle on my cam swap/header install somehow all the O2 sensors were mixed up. I wan to cut them and extend them, but i just want to make sure i'm doing the work on the correct sensors. How do you identify the front sensors fron the rea, by just looking at them? I realize i could get under the car and look but its about 40 degrees and raining hard outside right now.
thanks

Cstick

Is this an ORY or catted Y pipe. I mismatched my O2s and found out it does not matter, and with an ORY I have been told it is better to use the rear O2s becuase of better heater circuit. This would explain why I often get a code for driver side O2 about the heater circuit and not the passenger which was originally a rear O2.

Bluehawk27

This is for the TSP catted Y pipe with pacesetter headers. Are the front ones the ones with the darker tips? or the lighter tips? Also what length did you cut them to? 12 and 24?
Thanks