Since I have these wheels available in both configurations, I wanted to share with the forum the visual difference between the 2 since it is a very common question.
19x10 et25: Left pair of wheels are in the factory BBS LM configuration.
19x10 et17: Right pair of wheels (with tires mounted) are the Reverse Face configuration.
You can notice the "face" of the wheel is mounted in different positions and effectively changes the look and lip size of the wheels using the same exact BBS hardware.
Enjoy!