Not terribly specific but you just need to disconnect the plug and use a special 02 sensor socket that has a slit in the side for the wires to stick out, or an open end wrench and take the old sensor out. Working on the backside of the engine is a little tricky due to the lack of space so you're most likely going to need a good size extension for your ratchet. Installation is pretty much the reverse, just make sure you use the antiseize/ dielectric grease thats most likely included with the new sensor on the threads and you're good to go.
FWI - PEMs - DP - HF Cat - 3.4/3.5 MPS - 180* - PCM - 104'* - Shift Kit - UD WP - Solid Mount - DR'*
14.222 @ 95.27 - 2.112 60'