So I installed the High Energy brake pads on my ES. Yes, if you can get a pair of these calipers, you should. More stopping power for sure. But what you will learn is that the pads fit over rivets on the backing plates whereas on other models the pads are attached to the pressure plate. What does this mean to you? When you are reassembling the caliper and sliding it into position you have to keep the pads on the inner plate attached or they could come off; especially if you are jiggling the assembly along some dirty anchor bolts. Therefore throughly clean all parts with a can of brake cleaner, (protect your eyes from splash back) and lightly lube the anchor bolt. Oh, it always helps to squeeze in the caliper piston using a C clamp with protective ends to prevent damaging the caliper piston insulators. The caliper doesn't come off when you are simply inspecting the wheel assembly and cleaning/re packing the wheel bearings therefore it is important to clean as much of the caliper assembly as possible.
Now the reassembly trick. As you are sliding the caliper assembly forward along the anchor bolts I used a washer holder as its thin and has a great deal of spring/flexibility to it and it can reach in to hold and keep the inner pads on the pressure plate. Once you get the caliper assembly up against the disc you can slide your tool out. Then gently feed in the bolts, (yes, all 4 of them) until the threads are protruding enough to get the insulator (this is not on the standard brake assembly) to hang on the threads. Then slide the back plate/lining as carefully as one can from the bottom or top and using your tool you can maneuver it into place enough to get the bolt threads started. Tighten the bolts enough to keep the pads from coming off their rivets. Remove your tool and repeat the process with the remaining back plate. If you discover that the wheel will not rotate there is a chance that one of the pads came off it's rivet on the pressure plate (likely) and you can't see it, but it took up the room up against the disc. You will have to disassemble and start again; ask me how I know? Look at the pics attached.
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. I guess that comes at the cost of better stopping powers.