155/80 R13 size has a sidewall of 4.9 inches
175/70 R13 size has a sidewall of 4.8 inches
So technically you will not notice any difference in height.
I will recommend you 175/70 R13. It gives you much better grip specially on highway speeds. When I had OEM size in my 2007 passo, car used to drift to sides on high side winds on highways. Increasing the width solved this issue for me.
Increasing the size will however reduce your car mileage by around 1-2 km/l