AT4 Front Lower Air Dam Removal - Anyone?

[rikhek]

Has anybody removed the lower air dam on their AT4 for additional ground clearance and cosmetic purposes?  Any ill effects such as elevated engine temp or ???  Mines getting rough from hitting rocks and regardless, I think removing would look better and give additional clearance.  I see no down side?  I removed on my 2015 Tahoe and I had no issues.

 

Does anybody have a picture with it removed?

 

 

[topgear1224]

I could have sworn it was in the owner's manual on how to remove the lower air dam.

but looking at your picture I'm starting to think that the AT4 comes with it shaved off already.

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[topgear1224]

But to answer your question more directly

air dynamics will definitely take a hit, fuel mileage will go down. With it not smoothing that transition the air is going to swirl behind the bumper and that's going to create front lift and is also going to increase drag and turbulence underneath the vehicle.

the air dam effectively creates a negative pressure area where it ends which helps siphon heat out.

That being said unless you're working the truck to the absolute limit of its OE cooling package's capabilities, it is unlikely you're going to have any ill effects such as overheating. Since you have electric fans.

I would however be concerned about road debris possibly getting kicked up from that turbulent air and causing damage to the fins on the cooling package though.

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[rikhek]

I know the owners manual from my recent Tahoe included removal instructions for the air dam and suggested it be removed for off road usage.  I'll check the AT4 manual.

[Uknow me]

On 5/28/2020 at 6:56 PM, rikhek said:

Has anybody removed the lower air dam on their AT4 for additional ground clearance and cosmetic purposes?  Any ill effects such as elevated engine temp or ???  Mines getting rough from hitting rocks and regardless, I think removing would look better and give additional clearance.  I see no down side?  I removed on my 2015 Tahoe and I had no issues.

 

Does anybody have a picture with it removed?

 

 

I dont believe you can, I removed all the bolt to find out my 2021 is all one piece with the part where the red hooks come out,