R32 Gtr Manual Boost Controller Need Help As To Which Way It Goes

[danny14]

hey guys i have currently moved my manual boost controller from under dash to near turbos under bonnet.

now the manual boost controller is red with three inlets the same size in a shape of the letter ( T ) it doesnt have a brand on it or any indicators to which way it goes ..

i dont know what goes to pressure source or what goes to turbos ?

it did have 3 pipes running off it ....

but i didnt take note to where they went i thought the third would maybee be a vent to atmosphere ?

i know one went to suction into turbo pipe ,one went to both turbos , one went to manifold assuming that is pressure source

can someone please help so i can re hook it back up right