sos need help

[jims454]

can anyone help me i am in the process of putting together a twin turbo system i am building myself this is a first for me i love a challenge i got two garrett turbos part #471049-5504 from a friend brand new in the box and this is where i got the idea to do this i have no clue what i need..... controls..... first i need to id these units nib and no spec sheet somebody help