Your stock LS computer needs to be programmed to operate the transmission. We sent ours to Street and Performance and they added the trans programming to the prom and they also sent us the trans control cables/plugs/pins to add the pigtail to the LS ECM wiring harness.
Or you can install and wire up a seperate trans controller - we just chose not to do it and spent the extra dollars to integrate the package.
Jim
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