Dual piston caliper upgrade

[bm1moose]

i have an 09 impreza and looking to see if i can upgrade the rear to dual pistion caliper without putting larger rotors
im running 15'' wheels and tiers for my build

 

[bm1moose]

ok what about a brake upgrade front and rear

 

[bmart]

May I ask what you're trying to achieve? There are a lot of options, including better pads/rotors and stainless lines.

 

[bm1moose]

im lifting it with spacers and coilovers
building an offroad/ ralley type rig