ARe thoses 20s?

hmm, maybe it just varies from manufacturer. Mine slots are facing the other direction. Not a huge deal if they where on backwards. They just don't breathe/cool as much.

Sorry, didn't mean to alarm you or anything.

Yes those are 20's. Yeah you had me thinking all night. I guess some disks are a certain direction on the ends of the disk. But mine is just straight. I think you can see it in the first pic of the slots I am talking about.

Ernie..I think the rotors are on backwards bro. All the cross drilled or slotted or both rotors i've been are directionalwith the ends of the vane or holes pointing the front of the vehicle. From the picture they are facing the rear, opposite to the calipers. From the pictures of fastbrakes, there are no arrows showing which way, I am making an educated guess you need to switch them around. It shouldn't be too hard for your friend since all the hard parts of the installs are done.