I had mine sitting right in front of the feed from the original airbox going into the front wing,but a shield would have helped no end.Its why ive gone back to a panel box ,connected to the proper feed that goes into the wing on the passenger side of my car Wayne,with a K&N panel filter and ive ensured its directly venting to the outside.Ive also sealed up the connections properly so i only get the outside air feeding into the box.Ben is having my cone filter,but he will probably end up doing it with a feed or a shield,plus he also has the bonnet from Richs TSS car Trinity which has custom vents to keep the underbonnet temps down,which will help as well.Doesnt really matter if your car is turbo or not,if you breathe in hot air you wont get any advantage from a cone filter until you isolate it from less oxygenated air but they look and sound nice.