[M-Power M3]

I've been trying to hold our for ECS to produce a rear OEM brake upgrade for the 2.5i's like they did for the fronts but it's getting time I change out my rear pads and rotors so I can't wait anymore.

I'm wondering what all should I swap out?

I'm doing EBC slotted/drilled rotors to match the 3.0 ECS fronts I did, Hawk Pads and changing out the pad wear sensor. Is there anything else I should do? I've heard a few people say to swap out the caliper guide bolts but for $20 a bolt it seems kinda ridiculous...any thoughts/help would be appreciated.

Thanks!