Radiator support air deflector

[kdm1080]

how critical are radiator air support deflectors. I know they channel air to the radiator, just wondering how critical they actually are or if it’s ok to go without them.

 

[Themcfarland]

how critical are radiator air support deflectors. I know they channel air to the radiator, just wondering how critical they actually are or if it’s ok to go without them.

It made a difference of overheating my truck or it running at thermostat temps
I suggest you keep it