I hated the look of the rediculously tall chin spoiler on the front of my truck, so I took it off & tucked the fog light wiring out of sight. Still didn’t care for the look of the bottom of the bumper and exposed bolts so I planned on just painting it black so it wouldn’t be so noticeable, but decided to cut the spoiler down instead. Bad pic here because it was starting to get dark when I finished, but you can see how much I cut off from one of the remnants below it. Looks much better, at least to me, and now I won’t be afraid to pull all the way up to a tall curb in my 4x4, LOL.

 

I wonder if your MPG suffered from this modification but that looks pretty cool.

 

There have been a number of threads about replacing or trimming the front spoiler with a shorter one. What I don't recall is, any definitive claims of changes to mileage (MPG). I would also like to hear from someone who tracked any changes to their mileage after changing the height of their front spoiler.

 

You would have to work very diligently with mileage calcs to determine mpg differences from that mod...probably not possible due to too many variables in driving conditions.

 

You'd think the shorter it is the less wind resistance it would have but I'm not sure what it's function is anyway other than to deflect air to the sides on the truck?

 

 

 

Well not really possible to do without a wind tunnel lol or computer modeling that has the data for the actual tests and the specific data from the changed part. In military aerospace and you cannot believe what small to most people insignificant changes can make to aerodynamics. May not be but a mph or so but it all depends on speed which means resistance... 55mph = who really cares 80 mph = huge do the math you will see.

For those who do not know the reason for the air dam having more depth than the 2wd is to divert and keep air away from the components on the 4wd that are as aerodynamic as a brick.

 

Looks good, much cleaner than the big air dam that Ford builds the truck with. I was thinking of going with the 2wd one myself. As far as the fuel mileage comments go, I'm certain there will be a drop. It's designed to cut down on the air turbulence underneath of the truck. On my '12 F150 I removed the spoiler for a better look and I definitely took a hit on mpg.

 

Who the F buys a f250 or any truck for fuel mileage.

Looks good, i cut mine as well.

 

 

Or you could just replace it with the OEM part for a cleaner, less "homemade" look..

 

That is not a chin spoiler. That is an air dam. Chin spoilers are installed at the edge of the bodywork, creating a "skirt" of sorts. These air dams are (obviously) installed under the vehicle.

An air dam actually helps to improve fuel economy by diverting the air away from the underside of your vehicle, thus reducing the multiple friction points (all the various components under your vehicle).

It's the same reason that race cars (e.g., NASCAR) have absolute minimal ground clearance.

Have you noticed the air dams underneath the sides of semi trailers that run from front to back and from the bottom of the trailer down to near the ground? Yup. Same science.

Now THIS is a chin spoiler:

 

Yeah, that was an option, but took me less time to modify mine than it would have to drive to the dealer and pick up a 2wd "air dam" and this cost $0.... Only reason mine looks "home made" is because it's even shorter than the 2WD version. I actually like the shorter one better. My cut was near perfect and after sanding it looks as good as the factory cut line. You would have to get under the truck looking up at the bottom edge to see any flaw at all. Just thought I'd post it up as another option for those a little more handy and have skills to do this rather than the option we all knew about already, buying a 2WD air dam...

 

Well, there have been a number of guys who have already cut theirs down (instead of buying the 2WD version) already, too, so ...

If you can do it for no dollars, why not?

Looks good!