What are the part numbers for the upgraded parts for long range and remote access??
Both of the long range remote starts take the same 1000' range windshield mounted antenna, just depends if you want one-way FOBs or the bi-directional. The bi-directional FOB will flash green if the vehicle is running, letting you know it started without having to peek your head out a window or go outside to check. The bi-directional only has one FOB in the box, but you can add additional ones.
Antenna - DL3Z-15603-C
One-Way FOB - DS7Z-15K601-F
Bi-Directional FOB - DL3Z-15K601-A
Remote access requires the RMU cell phone antenna. It also requires dealer activation.
RMU antenna - DL3Z-19A390-B
Keep in mind that Remote Access needs an AT&T 3G/4G data signal. If you live in an area that has crappy AT&T service, you're going to get error messages when trying to remote start your truck from your cell phone. Doesn't matter what carrier your phone is on, it's still like sending a text to another phone on the AT&T network.
Hope this helps. Let me know if you have more questions, I deal with these things every day.