I think the setup for most Subarus of similar age are the same - for example I upgraded my Gt spec.B brakes with Brembos from a 2004 STi - just bolted straight on on the fronts - rears were a little more complicated

Easy enough to unbolt your current callipers
and swing them out of the way
and test fit the new ones? Have fun

2.0 GT spec.B BP5 with a few mods...

... And now I will show you the most excellent way... 1 Corinthians 12 v 31.......