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i have a 01 impala 3.4 v6 but i want to changed it to a 3.8 series lll supercharged. i want to know if i could use my same wires and computers, or do i have to change the wires and computers as well, or what kind of modifications do i have to do. also do i have to upgrade my trany or use the same one, or what can i do, what trany can use to upgrade my 01 impala. any suggestons thanks