10,000+ miles with one on with NO issues and several dealer visits to dealer with nothing ever mentioned.
I washed the truck yesterday and found many hits / nicks on the grille, so it must have stopped something from hitting the intercooler. Intercooler has some bugs stuck in it, few shiny spots where maybe smaller debris hits, that's it.
Funny thing, I drove about 300 miles today at about 75 to 85 mph and sometimes faster when having to pass with the foot to the floor. Stopped for gas, raised hood to check oil, intercooler was just slightly warm to touch, that's it. I know that I used the turbos several times and prior to exiting off to get the gas.
Wondered at times about measuring the temps across the inlet & outlet myself to see whats the actual effect of the intercooler, but after feeling what I felt, not even interested anymore.
Remember, anything you do to your truck MUST BE PROVEN WITHOUT A DOUBT that it cause the failure or otherwise they can't deny without risking a lawsuit.