I've got a C34 Laurel and was looking to change the engine from factory RB25DE to somethinng more grunty. does anyone know factory specs for a VG20DET and how hard this would be to install? or any other ideas please

i got a vg20..............and i want some tips and prices on performance parts..........i want my laurel to be badasss........so if u find anythinf post the link for me plz.....