6l80 ?
#4
There is a standalone but you dont want to use it with that much power. If you are going to use a 6L transmission use a 6L90E. As for controllers there are only a few that will communicate with the GM 6L transmissions. Mast currently does not support 6L. I do quite a few of the controller setups. You have to have some torque managment in order for them to live.
#6
I am using a 2011 L96 with a 6L80 in my 1941 Chev 2 door sedan. I was going to use the ECM out of the 2011 Silverado. Trouble is, the 2009-12 use the Body Control Module to run the Tap Up/Down switch to manually shift the tranny. I had John at Speartech Fuel Injection make me a harness and he supplied an E38 controller and reprogrammed the Transmission Control Module with a Corvette tune and now I am able to manually shift the trans if I want to. Works and runs great. With your turbo I would suggest a 6L90.