Congrats on the 4.6. I'm sure you're already loving it! Tank, beast, monster---all acceptable nouns for the 4.6 & 4.8 models!!

As for the keys, each key has to be coded to the vehicle. Unfortunately they have to come from the dealer...I remember reading somewhere here that you can get up to 10 replacement keys before the vehicle itself has to be rekeyed. I'm not 100% sure what something like that would run you but keys from the dealer here are in the 300 range all said and done.

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