Anybody have any idea what this noise is?



Went to go for a drive yesterday as I dont use the car that often and noticed this when braking. It only happens when braking going forward and doesnt do it when reversing. It is a 05 WRX with Brembo calipers which have been on for ages now running Project MU GT Pro rotors and HC800 pads, both of which are fairly new and had no problems running the last RAC sprint but this is the first time the car has been out since then. I have had the cailpers off and pads out and checked the rotor. I can see nothing obvious at all that could be causing this.