I know the compressor cover is a .5 a/r, and I know the turbine housing is a 1.06 a/r. I would like to know what the compressor and turbine wheels sizes are? I would also like to know what psi the wastegate is set at from factory? Also, how difficult would it be to change the .5 compressor cover to a 4 inch bell mouthed inlet, .7 compressor cover from the gt35r? What has to be done specifically? Thanks