I got R1 BBK for 17" wheel, one time customer here
they said for 17" wheels, which they didnt mention that would not fit OEM wheel, I need to change the wheels set, ok fine.
Rear brake sent with wrong e-brake size, wait for 2 months, ok I wait but big buck spent should not face this issue, or am I expected too much.
Now 10 months passed by, 1 of rear e-brake small lock screw for brake pad slide (shiney small piece of metal 4 pieces bottom of the caliper) gone cause the pad rub on the hub, some scratch but the noise and when it happened scare me.
Rear got another issue which destroyed my e-brake motor, cost me $118 (Parking brake motor), so look out for this. The part inside and design might not match the e-brake application my 2C. Also Ford e-brake motor installation included fluid which R1 housing cannot hold that fluid, may be they got improve with the version that they sent you, no clue.
Now I just back to OEM for the rear but still R1 for the front.
If I can do it again, nah too much trouble.