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Discussion Starter · #1 ·
The F150 sports two front air dams or deflectors. The first one you see from the front of the truck is mounted to the bumper, the second sets a little further back and sets much lower to the ground reducing ground clearance to around 6".

Has anyone removed the lowest air deflector/dam on a permanent basis and if so have you noticed any difference over time.

The first air dam attached to the bumper does sit lower than the inter cooler thus deflecting any road debris away from the cooler.
 

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The F150 sports two front air dams or deflectors. The first one you see from the front of the truck is mounted to the bumper, the second sets a little further back and sets much lower to the ground reducing ground clearance to around 6".

Has anyone removed the lowest air deflector/dam on a permanent basis and if so have you noticed any difference over time.

The first air dam attached to the bumper does sit lower than the inter cooler thus deflecting any road debris away from the cooler.

I have a 2013 Fx4 and removed it to put Ranch Hand on. Haven't noticed anything different yet.
 

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Discussion Starter · #3 ·
I went ahead and reinstalled that rearward/lowest spoiler after reading that it serves two purposes. One to help deflect air down under the chassis and help deflect small road crap from away from the intercooler. The other reason is that the upper design of that spoiler is channeled to assist in directing air direct to the intercooler face as it enters through the front bumper opening.

I didn't like how low it sat, but after doing the Rancho Loaded level kit it raised it up high enough that it doesn't look as squirrely.
But, who knows, I may try pulling it off on my next road trip to see if it helps in the MPG gain arena.
 
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