Hello guys I would like to make a question.i have a ds7 1.2 pure tech with manual 6mt. I love the car and I don’t want to change it with an another one but I want to upgrade the power.i don’t want to tune the 1.2 and I wonder if I can fit an 1.6 pure tech with the 6speed manual. I make a research and I saw that the 308 gti had the same 6mt with the 1.6 pure tech. So my question is does the mt really fits. Does the 1.6 will have any electronic problems;
In the old days it was easy, you could even put an engine from another manufacturer in your car without too many modifications. For example I put a 2.5 Ford V6 in my Vauxhall Victor FE. 
Alas, now with all the electronics and how they all talk to each other you will have a very big job on your hands.
I would imagine that is would fit as they fit a 1.6 engine into the Hybrid version, and offer 1.5 diesels