Covercraft MM Series Full front mask - Hood opens with the mask in place. For maximum protection you cant beat a full front mask. They cover the bumper area (some truck models do not cover the bumper, to allow for installation of lights, grille guards, etc.) and the leading portion of the hood area. MM Series masks are a little more difficult to install, since the hood piece is separate and must be lined up with the fender area mask for a good installation. But the finished product is worth the effort! Covercraft usually screens radiator openings because they feel it"s important to protect the maximum front area possible. Covercraft has done plenty of testing over the years to confirm that the screen does not increase the engine temperature. There are some applications that just wont allow the use of screening. Some applications, like Firebirds and some Corvette models, have the hood opening so far back that a hood piece isnt required.