Also bought some 1/4" spacers to space the electronics off the mounting panel. My origional thought was mainly because I wanted to run some wires up behind those boxs up to the frame above. But as it turns out its turning into a great place to hide some wire connections. I hate having big bundles of wires and connectors visable. Im trying to hide all the connections I can (within reason) The 2 grommets I added to run the coil wires thru are directly behind the boxs and wont be visable at all from the back. The way the frame tubes run around the sides of that mounting panel you wont even notice that there is wires behind there. Nice and clean.