Vented Mud Flaps – Tractor
Vented mud flaps are designed with holes or other means for allowing air to flow through the flaps while maintaining the function of lowering water spray and deflecting objects.
Many different designs are commercially available and adoption is growing significantly.

Benefits
Fuel Savings (If Coupled with Higher Capacity and Higher Voltage Electrical System)
Challenges
Not Available for Most Vehicles as of March 2017
Increased Complexity of Electrical System
Higher Electrical System Voltage and Power Output Required
Reliability Issues
Increased Maintenance Costs