Now, this could be brake or drivetrain related hence why I am posting here.

Basically when i brake at low speed I get a light scraping noise from the front brakes. Pads are new so should not be a problem. It's an 06 STi with 22k on the clock.
Other issue being is that I get a regular kind of knock from the front left when braking. Happens more or less everytime I brake? sometimes sounds like something is loose and bouncing around (such as he caliper?!?!)

Any help appreciated