You have just answered your own question !!
You are running the wrong size tyres , the fuel cap numbers will give you the size you need to match from , if you have not got 18’s on your fuel cap then you would need different suspension uprights to accommodate them ,
So looking at the fuel cap sticker tells us everything !!
I don’t need to look at it , I can tell you your non standard set up is not compatible !
It’s not rocket science , leave your suspension alone and fit the right size tyres !!