I have not tried their FE engine mounts, but they look nicely made.
I doubt them being any more in/out of spec than some of the aftermarket stuff available... some of which is junk right out of the box these days.
If you are going from old, worn out engine mounts to something new, especially if that new is using poly bushings instead of the rubber puck bonded to the plate like factory, you might even find the new mounts being a bit higher than stock by smidge because of the harder durometer of the poly bushings as compared to the stock rubber.