Breaking Heavy or feathering them doesnt seem to change any noises. Tried different types of breaking and cornering to spot the direct problem but no noises came up.
Also the noise only starts maybe 5mins after driving. So it needs to get a bit hot first before the noise happens. The noise was loud and sounded bad when pulling into a car park at the train station. Driving along sounds like a low squeak noise, driving very slow when parking made the loud grinding noise.

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WRX MY05
215HP - 16 PSI
Ultrex TBE
Cobb Air Intake
STI Intercooler