as uve already said u will need a -31 for a 2 stage boost that would give u about 7 psi for daily driving then about 16 psi for when u want a bit of fun !

a -34 wouldn't allow u to run 7 psi as its too strong the wastgate can't open!

as for what uve got try pulling the arm outwards if u can move it a bit uve got a -31 if u can't budge it its a -34 lol
thats what ive been told