I've got 12k miles on mine and my experiences match yours. I, too, notice a big decline driving 85, vs. 78mph. Over 80mph is heavily penalized. Good data - Thanks for sharing.
Regarding the question above about Dynamat - (in full disclaimer - I’m the CEO of Dynamat). We have a custom kit for the Bronco 4 door. We launched it at SEMA last fall. 2 door is under development.
3 separate kits - doors/floor/cargo. They are pre-cut to the shape of the vehicle. No cutting...
Thanks for the kind words. To address the numerous questions…
It’s an OBX Sasquatch Cactus Gray High Package
Hard top
Stock lift
Stock flares
35x12.5x18 KAO's on 9x18 Fuel Rebels +20 offset.
Upgraded sound system, emblems, Dynamat’d the whole truck.
Just passed 10k miles yesterday. Kind of sad...