Yes, you will need to send your PCM off to have it unlocked or swap yours.I have a few questions - I just got a Flashcal for my new re-gear and 37" tires. I see that I can upgrade my Flashcal to a Flashpaq for a discount through the software. Do I still need to do a PCM swap for this? The description does not state that I do.
It’s not necessary, however since it’s a pain to contort your body to get under the dash I’ve found it easiest to leave it in. You only need to worry about removing it if you have to bring it into the dealer for service.Also, do I need to leave the bypass module plugged in all the time for my tunes / adjustments for gears / tires / etc. to stay active?