Now to secure the back portion of the diffuser with the self adjusting arms that were attached to the diffuser. You need to drill through the fender well. I used a 13/64th bit. I also got some lock washers to ensure they won't vibrate off.
First, line it up and mark where you will drill. You can adjust the arms by twisting the center cylinder.
After drilling
Lock washers I used
In and bolted down.
You need to tighten down the part that allows you to adjust the length.
Same thing only though the spare tire well.
Final
