How to: Installation of Rear/Lower Air Deflector

[Forddealz]

If I decide to add Borla aftermarket exhaust system, will it interfere with putting on rear air deflector?

 

[Ronxlt]

If I decide to add Borla aftermarket exhaust system, will it interfere with putting on rear air deflector?

No, it won’t.

 

[northvibe]

Well, I can confirm that the part I listed also works. I think the only difference is how long they are. So for anyone ordering online or from the local dealer, just be aware that Ford's diagram and parts listing is WRONG.

Here is the parts breakdown of what you need.

L1MZ-7811778-A Under Cover
W714040-S300 Wheelhouse Liner Rivet (qty 2)
W715060-S450B Screw And Washer, 4.2 x 25mm (qty 4) -- or W716345-S450B, 4.2 x 20mm (per TMMST)

The two rivets and washer/bolts should cost about $10 total. The two nuts on each side of the rear under cover are already on the car. Install takes about 15 min tops. Just put some cardboard on the floor and lay on your back.

This is correct list. The screw/washer's are the same as the ones used in the wheel wells. if you install mud flaps you'll see them. They are 7mm.

1 x L1MZ-7811778-A Under Cover
2 x W714040-S300 Wheelhouse Liner Rivet
4 x W715060-S450B Screw And Washer, 4.2 x 25mm

I'll get pictures once my screws come in.

 

[NEWPORTNJ]

I installed this one. I bought it from Amazon its rubber.