I just put them on my 13. There are two hoses one on each cover. The difference in the covers is in the way the wires attach. I just cut all the zip ties off when I put the new covers on and now my wires hold themselves lol. You'll need to remove all the secondary plug wires. Its easiest to pull them off the coil and leave them attached to the spark plug. On the drivers side I had to unplug all the coils and injectors and move the wire harness down toward the wheel well. You also need to remove the intake tubing. It sounds a lot harder than it is. Once you get in there its pretty straight forward.
Here's a few pics I snapped with the covers off
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