That's the hose I suspect won't be a clean fit on the compressor inlet. My faded memory says the flange ends 20-30mm forward and is a few mm smaller. Your 350 won't have a vacuum amplifier nor an EDS signal to use ARV (not that you'd want to). You can use the turbo as is with ARV disconnected but I'd look into obtaining the correct turbo for your car. IMO, that one ain't it.

Sixto
MB-less