Hi Mat,
Th Galant did come as a 2 litre turbo option that had exactly the same engine as the Starion. However the 1.6 engine I believe is the same block - Just check to see if it has 4g63 on it?
Alternativly ask Dominic Bolton as he's the expert on Galants
follow the link to his site here
http://www.oldermitsubishis.co.uk/
Regards
Mark