Repeat to the otherside.
Now the task is to drill through the diffuser and bumper to make the diffuser sit flush to the edge of the bumper. Again, I didn't like the way APR wanted me to do this, so I came up with my own solution. The reason I didn't like they way APR's method is because although I can get about half the hardware in no problem, there are sections where I can not physically attach a bolt to the inside of the bumper since the diffuser is blocking the only access.
Use a piece of tape to help hold up the diffuser.
Here is the type of hardware I use. Self-tapping screws and clamps. You'll see why in the next few photos.
Pre-drill the holes through the diffuser and bumper. Be sure you measure and check 3x before you start drilling!!
After pre-drilling
I used a Dremel with a bit attachment for the next part. You can use the drill to do it too.
Attach the clamp. No access to the back? No problem. Thanks goes to Chris, my co-worker for this solution. After you line the diffuser back up, the screws will go right in. Don't worry about how it looks. It will be covered up by the diffuser.
