I too have 19" wheels, but mine have a slightly higher offset at 48. What width are the wheels? 8.5" wheels are more likely to rub when lowered than 8" ones as they stick out another 6mm with the same offset?
The car is lowered by 30mm over stock on coilovers and I have no rubbing issues. I also did the wheel arch screw mod to give the car an extra few mm's of clearance.
Car as it is now.


Diagram showing offsets for info.


HTH