Ok, laugh if you want I just figured out how to fully turn the nannies off. I have owned this truck since July 08. I was just pressing it one time and holding it for 3 seconds. Now to my question, With all the nannies off the exhaust sounds different than with the nannies on. Have any of you noticed this too? My girl even noticed that is sounds different. I think it sounds tighter, not as deep. Let me know what you fellers think.