I did a search on the site and found nothing on this topic. I was at the Acura dealer picking up my plates and talking to a Service Manager about Stongard and Clear Mask. He pointed out that the lower grill has very wide openings that allow rocks and other debris to go through to the air conditioning line and radiator and noted that he has seen several come in with a screw or rock piercing the radiator or air conditioning line. He suggested I go to an aftermarket store and install a screen similar to that on the grill below the hood. I have done searches for somthing that I could trim and insert somehow into the lower grills but haven't found anything. Has anyone here dealt with this in anyway? Thanks.