2015-2018 GM HD Ventvisor Front and Rear Window Deflectors Smoke 4-Piece (AVS194528)The AVS In Channel Ventvisor adds a refined finishing touch to your vehicle while improving everyday driving comfort. Whether you are cracking the windows on a rainy commute or letting fresh air circulate on long drives, these deflectors help create a more comfortable cabin without disrupting the vehicles original styling. The low profile design blends seamlessly with the window line, delivering subtle style and long term durability you can rely on.