Originally Posted by R3QU13M
I was thinking same thing too but wasn't sure. Thanks for at least replying. I believe other members weren't confident with the answer they could have provide. Still love them though. Me personally I like to give correct information without reasonable doubt.
At the end of the day, its worth a shot to install (for example) US DLC via cracked PKG to your internal HDD0:/game/BLUS123456, rename it folder and param.sfo to reflect your EU game on (for example) your external HDD under the ID BLES123456.
If it doesnt work, just remove the DLC you installed and modded, and there is no love lost.