Clogged MAF due to no air filter for 2100 miles

Yes,traved through the engine.. even with an air filter in State like FL, engines wear faster from grit and sand. NO, air filter sudden death.

I had a borescope done and have showed the pics to a ASE certified master tech and a field office person from the dealership look at pics. They both have different opinions. One says you can see the sand build up on a piston and the other says its carbon build up. ASE says a car with less than 25k miles should not have carbon build up and carbon build would be showing up on all Pistons not just a few.

Car has been sitting at dealership for almost 4 weeks. They admitted they were at fault. The borescope showed scratching on the cylinder walls: opinion of pics: normal cylinder wall will have a cross-hatch pattern on it from when cylinders are board and honed.These are the angled lines that cross each other sideways that you see.All of the vertical strait lines on cylinder walls were caused by the sand getting into cylinders and getting caught between the compression rings on pistons and cylinder walls,causing damage to both rings and the walls.Also the Black and Shiny build-up on top of the pistons is sand.the top of the pistons should not have any solid partical build-up at all at just over 20k miles

Also, compression test readings they provided: all 6 cylinders read 275 psi