where does it say or prove that its a lly? i know mine is a 04 but not sure if its a 04.5 and i know that it was recently delivered to the dealer ship.

Eighth digit of VIN; 1=LB7, 2=LLY.

If you can look under the hood, instead of the injector lines going into the center of the valve covers, they hook up directly to the injectors that are no longer under the valve covers.

Glove box sticker will have an LLY and not an LB7 in the list of options.