I saw a debris shield that is made from alluminum that filters out road debris from clogging radiator. Worthwhile or not? I remember my 87 vette when I went under to clean it out after about 60,000 miles and found a lot of leaves and a dead rotted bird (scared the $h*t out of me in a cramped space and confronted with this beast inches from my face). Anyone have it, worthwhile, waste of $, opinions??? Thanks.