Don't think the expanded was ever an issue for anyone with the Gobi, from a noise perspective.
It was more the open space between the front cross bars on the that seemed to resonate at an unbearable frequency on the front of the aerodynamic abomination that is the FJC, even with their air dam that mounted tight against the roof.
Gobi even sold blank plates to fill the void where lights would be, if opting not to run lights, in between each of the front upright supports.
I didn't care for the noise, nor how the lighting was positioned, so chopped the front of a new Gobi off, to accommodate a 40" bar, and it fixed the problem.
Don't know that any is relevant, but I wasn't too happy investing a small fortune in a rack that sang out of tune, so figured it may be worth mentioning the possibility before you finished.
It was more the open space between the front cross bars on the that seemed to resonate at an unbearable frequency on the front of the aerodynamic abomination that is the FJC, even with their air dam that mounted tight against the roof.
Gobi even sold blank plates to fill the void where lights would be, if opting not to run lights, in between each of the front upright supports.
I didn't care for the noise, nor how the lighting was positioned, so chopped the front of a new Gobi off, to accommodate a 40" bar, and it fixed the problem.
Don't know that any is relevant, but I wasn't too happy investing a small fortune in a rack that sang out of tune, so figured it may be worth mentioning the possibility before you finished.