well, I got it done. I removed ALL the heat sheilds from the cat to the back, and that one heat shield that is from the down pipe to the cat. There is still a small rattle. I don't mind this cause it's not loud at all. The last rattle i believe is the heat shield that goes around the down pipe. I'll have a look at it tomorrow but so far, everything is good with the non-rattling.
Oh, If you think you're gonna "burn" a wire" for the s14, there aren't any that is in danger. Before my friend bought his s13, the previous owner changed the whole exhaust system (he changed it and made it stock, so nothing special). Obviously since he replaced it, there are no stupid heatshields from teh down pipe to the back to make it rattle. So to further prove you won't mess any wires up, that is it.