It is very easy task to swap actuator. x Bigger, front mount intercooler. 43.61/56.02mm 6+6blades =Upgrade billet compressor wheel Size. You will need to use actuator from your old turbo.
Turbocharger BMW 120d 320d 520d X1 X3 GT 2.0 163/184BHP 49335-00584 Turbo+Gasket
Turbocharger BMW 120d 320d 1995 ccm 163 BHP 120 kW 49135-05671 + GASKETS
Turbocharger BMW 120d 320d 520d X1 X3 2.0 GT 163/184HP 1995ccm TURBO 49335-00645
Upgrade Turbocharger BMW 520d / 320d E91 E90 / 120d E87 New Stage 1 Turbo
Complete Turbo Turbocharger for BMW 320d E90 E91 520d F10 F11 X1 E84 X3 F25 N47