So I installed a Thunderheader 2 into 1 system on my bike last night and think I should update the map on my PCIII.
The bike is running a TH 2 into 1, Screamin Eagle Heavy Breather, and PCIII USB
So I found the map online that matches mine as close as I could find anyway:

819-019 Thunderheader 2:1, SE Air Filter, stock ECM, Dynojet O2 sensor Elims installed, rev extend enabled, Fuel table is rear Cyl

So that is the part I am unsure of. What is fuel table is rear cyl mean?

Also can someone walk me through the process of doing the download to the PC3? It has been a few years since I did that. Thanks in advance

 

As far as I know the rear cylinder and front cylinder can be mapped separately. If you want to use that map for both cylinders you'll need to tell the software that you want to do that.

You will need the PCIII software on a Windows PC. With the bike turned on but not running plug your USB cable into the PC (laptop) and into the PCIII. Load the map into the software and upload the map top to the PCIII. It's actually pretty intuitive once you get into the software.

 

I got it done. I think I was just extra concerned for no reason