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My car has 170 000km on it. MY06 Spec B H6
Front sway bar bushes absolutely stuffed and also the passenger side sway bar link (yet to be done)
Bushes genuine from Subaru were $12 each (2) - significantly cheaper than FULCRUM or PEDDERS parts for instance
I would say any 04 - 06 car with this kind of km will need the bushes done - easy DIY with the most basic tools, however the bolts are very tight. Just drop the engine cover and you are away. Takes about 20 mins at the most
Comparison
The part number