Torx Screw

[H3 Hummer 64]

cool, thanks everybody.

[f5fstop]

It actually holds the vehicle together....

[Agriv8r]

it is to help gas mileage. as long as the factory part is intact, you should get 3-4mpg more than someone who drills theirs out. could explain how it works, but it is a little technical, and to be honest i dont quite understand it all. but whatever you do, dont drill it out or throw it away.