The original poster is speculating that there is a difference between the mudguards for the JDM fenders and the mudguards for the UKDM/USDM fenders.
I believe he is in error and the part of the wheel well behind the wheel is the same on both fenders; however, I am not sure and will point a JDM-fendered friend to this thread.
All of the stupid and unhelpful posts are deleted.