I was reading over at ecomodder.com that a lot of people block their grills to minimize drag and increase fuel efficiency. Apparently, Coroplast is the material of choice.

Anyone try doing this on the NAH? Can it be done under the hood and without affecting the look of the vehicle?

Eph

 

If they block off the grille, did they also mention how the radior gets cooled ???

 

I think they leave it partially exposed.
See this link.