WeatherTech Side Window Deflectors - Front/Rear - Dark Smoke - GM Fullsize SUV 2021-23 H753C3057 Ideal for driving alternators and/or

Ideal for driving alternators and/or vacuum pumps at optimum speed

For most GM mechanical speedometer applications

Independant tests have demonstrated a typical 25 horsepower gain over the previous Pro1 design

It features a raised lip around the perimeter to contain any mess and protect your floor from what’s tracked in

WeatherTech Side Window Deflectors - Front/Rear - Dark Smoke - GM Fullsize SUV 2021-23 H753C3057 Ideal for driving alternators and/orSide Window Deflectors WeatherTech Side Window Deflectors, offer fresh air enjoyment with an original equipment look, installing within the window channel. They are crafted from the finest 3mm acrylic material available. Installation is quick and easy, with no exterior tape needed. WeatherTech Side Window Deflectors are precision machined to perfectly fit your vehicle's window channel. These low profile window deflectors help to reduce wind noise and