[sjgrimsley]

What I've gathered so far is the C5, C6 and base coupe C7 all have front air dams and all have a large amount of panelling underneath. C5 are bottom feeders like my car for cooling and the C6 has a front grille but needs the air dam to create that low pressure area behind the radiator to draw air through it. But the C7 has a nice front grille and vents radiator heat through the hood vents, reason for radiator tilted forward. However, after further reading, the C7 with the Z51 performance package does not have the air dam which I found puzzling. The base coupe doesn't need the air dam for cooling since it vents through the hood.

I have read a quote supposedly from a GM exec that by removing the air dam and allowing air to flow under the car, the hood vent was able to pull more of that up and over the top, increasing downforce. I'm unsure of if that works or not. Seems logical with the Z51 package being more track oriented.

Please excuse my rambling. Lol. Just for reference, C5 1997-2004, C6 2005-2013, C7 2014+