yup
Basic interpretation is closed gate makes a pocket of air in the bed. Higher speed air then flows over the cab and this pocket in the air. Dropping the gate gets rid of the pocket and air that would normally have flowed over the top now get pulled down hard behind cab and exits the rear at deck level, thus more drag with gate down.

Another result of sloped glass is cleaner air over the spoiler and more downforce. Isnt air cool <img src="/forums/images/graemlins/smile.gif" alt="" />

Turn LEFT to go RIGHT


Thudump!....What was that daddy? Ran over a Honda, go back to sleep sweety.