i had the exact same problem. the shop ended up grinding the hub a bit to get it to seat. sadly it never seated properly and eventually my rotors were warped as fuck. long story short i now i have race concept rotors. AEM's are a waste of money. i was stupid. the whole concept is kinda stupid when you think about it. spacing the caliper farther out to fit an oversized rotor while still using the stock calipers? :wary

the pads aren't even fully on the rotor. how dumb is that. if you want big brakes get a real kit or stick with GSX calipers and upgraded rotors IMO.