I have had problems with my condenser being damaged by stones going through the very open lower grill in my Abarth Aniversario, I have placed posts prior to this one relating to this, The air conditioning rad is very easy to damage when a stone hits it, this is NOT covered by any warranty. Hence I found on ebay some black plastic chicken mesh, cut it to the same shape sa the lower grill and used small black cable ties to hold it in place. I fitted this 3 weeks ago, in the back of my mind I did have a little worry it may restrict the airflow , but NO! I have just returned from a trip round the Cotswolds with an outside temp of 25 deg, the dashboard temp stayed midway as it should be. When I returned home it was amazing how much debris had been stoped from going through the original holes.. I actually doubled the mesh & fitted it to the front grill, I would have preferred to have placed it behind but this would have meant removing the whole front bumper (too much hassle) Astheticaly unless you look closely no one would notice the modification but the benefits are rely great. Hope this is helpful. Barry