Hello,

1 - I placed my checksum plugins inside the C:\Program Files (x86)\Tuner Pro RT folder. Seems to work, no problems.

2 - If your PCM's have the green / blue connectors and a 1 megabyte memory capacity, they should work.

3 - The XDF file MUST ALWAYS MATCH the operating system, NOT the model year or engine size.

4 - Most of the time, you are changing the operating system. Completely overwriting your previous OS. This is because most of us are not lucky enough to have a vehicle with an original OS that has a supporting XDF file. We most always abandon our original OS and put in an OS that has good XDF support. The 12587603 OS is such a thing.

Rick