Max, you may not even get this and you posted about it almost 4 years ago, but I am desperately trying to get to the bottom of the clanking brake pedal issue. I don't even have a Subaru and it does it! I have a 2014 Nissan Juke and it started doing that around 1000 miles. About 70% of the time, when I lift off the pedal, I'll hear a metallic clank/clunk sound and other times no sound at all. VERY annoying. The dealer says everything looks fine... So I want to ask you, did you ever find out what the problem is with that?? If you respond, thanks.