the pics online are normally not of the product. it showed for my 4runner a 2 piston sliding caliper when its actually a 4 piston, and my subaru as an opposed piston when its a 2 piston sliding caliper. so best to go in and look at them. also change both with pads and rotors. just do everything while your in there. and also flush the brake fluid. a vacuum bleeder helps alot.
I know a lot about cars. I can look at a car's headlights and tell you exactly which way it's coming