For sale new COMPUSHIFT Mini Computer for GM 700R4 and GM 2004R designed to control the torque convertor lock up. This link shows what was paid for it and what comes in the kit. http://www.cpttransmission.com/mini-computer.html It includes everything to connect it up to your transmission. More info on it. https://manuals.hgmelectronics.com/csminimanual_Preparing_for_Your_Installation.html Shows what is in the kit https://manuals.hgmelectronics.com/csminimanual_Unpacking_and_Inspecting_the_Kit.html This has never been installed and to my understanding these work really good to set when you want your lock up convertor to engage and it is able to show you trans pressures and other info to help trouble shoot other problems. I am asking $150.00 for the complete kit plus shipping. This would work good on Firebirds that are running a 2004R or 700R4 transmission with a lock up converter, but would work on any set up with those transmissions. PM me if interested.