The Kelderman bags offer more travel/adjustability and a bit more flex than the factory ones. My truck was a factory coil truck to start. I went to the Kelderman bags because of a friend's experience with them. He had a full factory air set up on his 2016 and was not happy with it, especially offroad. Now I get it; you aren't getting much flex in these trucks with bags, but there is a significant improvement. From factory coils to bags, night and day difference. Worth every penny, with no negatives, in my opinion. I am running an airlift 74000EZ for the air system. It's perfect if all you want to do is fill the bags.
Anything more, and you will need to go a different route. You can see in the pic where I have it mounted. You can use factory rivet nuts on the cross-frame piece to mount the compressor unit.
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