Took the cats off the stang today, just doing some experimenting. Should I buy some MIL eliminators for the rear O2's or can I shut them off with my X3? I'm having the car retuned in a month or so after the I/C install, will this change anything? I'm under the understanding that if I put MIL eliminators on it now and leave them on it through the dyno tune I'll be good to go and eventually down the line when I want to put my cats back on, I can just pull the MIL-E's and slid ethe cats back on and be all set for inspection. Does that sound right or am I way off?