last week i had a look at the O2 while i had the up pipe off and it looked burnt. the diode (i guess) looked like it had a hole blown in it so i decided to use my store credit at postons and order the Tomco platinum II sensor. one question, right after it in the catalog there was a O2 removal socket for like 15 dollars. do i need that or what. can i use a deep well socket? or can i find this special tool at Autozone etc. for less.