Hi mate some people mount them on the botton drivers side of the front bumper as there is room there.

A guy called dan savage down my way has his mounted where the old
mfi unit used to sit above the gearbox. He runs a cold feed from his
twin headlight conversion on top of it, think that was done by NMS mate.

Check out the issue of Performance Ford which had the feature on his car
a few months ago for pics.

Cheers matt