[Freon]

I don't believe so. The upper mounts do not interfere with the vertical positioning of the subframe. The inner metal collar (where the bolt goes) of the stock bushings still makes direct contact with the body of the car. I didn't get a great shot of it, but it is apparent when you lower the subframe. There is a shiny spot on the body frame and inner bushing where you can see no dirt has been present. The upper inserts do not cover this area.