hey, i got confuse reading about the real tire size for the ap1 oem rims. so what really the correct tire size? Front 205.55.16 rear 245.45.16

is it fine if i run front 205.55.16 and 225.50 or 55.16 rear

 

You can either run 205/55R16 front and 245/45R16 rear or 205/55R16 and 225/50R16. Either option works fine. If you go with a tire other then stock the the 245/45R16 will give you about the same contact patch as the OE tires.
If I can help let me know.