One of the best upgrades I did was to add the vortex generators (VGs) to our class A motor home (MH).
The VGs improved the handling more than the expensive shocks and swaybar.
Even though the shocks and swaybar made the ride better the VGs really blew my mind on how much they improved the wind issues from crosswinds and trucks passing.
Crosswinds? What crosswinds? They don't push the MH around like they did before.
Totaly amazing. The truck trailers used to get sucked towards me as they passed which increased the pucker factor quite a bit. Now they don't move toward me and I barely know they are passing. I still get a very small bump on the noise when the truck hits my bow wave but most of the time I don't even have to correct for it. Some smart person out there may tell me how to fix that too.
The other benefit is way less dirt on the back end of the MH. Stays as clean as the sides now.
Where did I get them you may ask?
Well they do make a commercial version of them called Air Tabs, but I 3D printed mine.
The cost was less and I ended up with a 3D printer for other projects.
They are installed 4 inch on centers (where they can be) and they are up both sides and across the top.
I hope to paint match them to the MH this summer just to spruce them up a bit.
I hope this will help others out there that may be experiencing the same issues with wind or trucks.
As Ray would say,,, Cheers!