Help with option codes
 

i got a list of what the option codes mean from www.fbodymotorsports.com so i could decode the list in my glove box. here are my questions: there are a few codes on my glove box list that are not on the list i downloaded and there are also options on my car that i know i have (heater, power windows, etc.)that didnt get checked off when i went down the list. im thinking that gm changed the codes during the 4th gen run and my car has old codes on it and the list i have has newer codes on it. so, can anyone tell me what these codes are:
KG7,R6R,UM6,15B,48Q,6EJ,64B,64I,7EJ

also, i have a code for Performance Suspension Package (G92). does anyone know anything about this? its not the generic code saying that my car came with a suspension, thats code FE2. thanks.

run it in the rpo code reader at thirdgen.org