2014 wrx sti

I’ve had this car for about 6 months now and recently noticed a slight oil leak. I don’t even know what the part is called. Haven’t had any issues with the car. Was hoping one of you subi wizards can help me out. Whatever that blue plug is connected to that’s where it’s coming from.

Bump - price reduced to $5999 Complete carbon widebody kit, underbody, floor panel, door, arch liners, etc. from the original Drew/Higgins 2013/2014 campaign. This is the original spare and authentic carbon widebody set + all necessary peripherals manufactured by Vermont Rally from the 2014...