Mike swung by my office earlier this week and we installed GFC #367 on my ZR2. Thanks Mike!! Just in time for MN winter.
One thing I was curious about is the effect on fuel economy on my little duramax. Sure enough, the topper dropped average fuel economy by about 2-3 mpg for my 20+ mile commute. That is about what I was expecting and have been planning to install a wind deflector. Has anybody out there installed real wind deflector on their GFC topper? I am just looking for some inspiration before I start cutting and bending some brackets. I have used wind deflectors on a few roof racks and found they do help.