I have a RalliTEK Skid plate for the cars in the subject, from my 2011 WRX. It is in great shape and worked just fine with a Fumoto drain valve for many years. Photo available at https://imgur.com/vk3hUSB Looking for $150 for local pick up in Rochester.
How tempting? It saved me from ice chunks more than once on the interstate, with no signs of having done so. Can't recommend one highly enough.