It is easy to lower the C7 using the stock bolts at all four corners, and you can still use the ‘mag’ shocks. That being said: DSC recommends leaving the car at a normal ride height if using their shock controller for better performance.

 

Yes, it is quite easy a lower a Corvette. Corvette suspension have Leaf Springs instead of Coil Springs that most other cars have. C5, C6, and C7 Leaf Springs have adjusters bolts(see image below) that sort of looks like furniture footing adjusters. By turning the adjusters the height of the car's body changes.

We get that lowering makes a car more racy, but we are more into the performance aspect so we prefer to run stock ride height for track use to optimize the damper travel range with DSC controller.