Originally Posted by
rpturbo
I use the 04 P59 files. The base OS is 12587603. I have a copy of basically any configuration needed for any swap. This 04 P59 was found in the Van's, so it has the IAC drivers, and also in the Corvettes, so you can get the file for DBW as well. Since these came in the Van, they have files for a 6.0/4l80E and also a 4.8/5.3/4l60E obviously, the Corvettes have the manual trans, so with that, basically, there is any config you could want. They do come with Flex Fuel enabled in some, they are harder to find, but are out there.