cit1991

Same question here. Has anyone retrofitted one of these into a Denali? Mine’s an ‘18.

Ok, so you guys probably all know this, but this thing has computer controlled louvers to regulate airflow in front of the radiator. Never seen such a thing. Should help with faster warmup from cold and a bit better mileage from improved aerodynamics when the air is cold...kinda like cowl flaps on an old radial aircraft engine. Old news, I'm sure, but was new to me.