I recently purchase a K-member and A-arms from BMR.
BMR-KM011R K-member, 1/2" lowered motor mounts, std rack mounts.
BMR-AA023R A-arms, lower, non-adj, poly/delrin, 18mm tall ball joint.
The K-member fit the body of the car with no binding anywhere and all the bolt holes lined up nicely with no binding. The driver side A-arm also fit correctly with all bolts centered and with no binding in the mounting holes. The steering rack also mounted to the K-member without issue.
When installing the passenger side A-arm there is definitely a fitment problem. The distance between the front mount and the rear mount is far to close causing a binding of the bushings and the outer rear bolt will not go in straight as a result and has serious binding.
The third photo shows the rear of the A-arm and shows the bolt is tight against the front of the mounting point on the A-arm even though it is slotted to make up for minor fitment issues. It is so tight the bolt will not go in straight as can bee seen if you look closely at under the head of the bolt where there is a gap towards the rear and none towards the front.
The forth photo shows the front mount and the rear bushing is collapsed and the front is not. If this bolt was torqued down it would severely stress the bushings and the rear mount.
This clearly show a dimensional discrepancy in either the A-arm or the K-member. If the bolts where actually torque down this would cause a serious binding of the suspension and different load left to right.
I have E-mailed BMR these photos and explanation. Now I just have to see how they intend to fix the issue.