Installed my Invidia G200 couple days ago while visiting my sister in South Carolina (thanks to Wright Way Performance - everything arrived quick, all there for $850 shipped. Good quality . .sounds great .. and agressive). According to MapQuest, .. it is 747.73 miles from SC to Baton Rouge. Stopped three times for gas, three times at rest stops and once at MickyD's .. total of 11 1/2 hours .. at an average of 66 mph and . .get this .. 28.2 mpg!! Good nuf!!