I'm interested in a chin spoiler, or valence extension ... Primarily in hopes of reducing wind drag. Not looking for a bumper cover.

I saw one today on a silverado, that was just an add on below the existing bumper plastic . . . hung down an additional 3 inches or so.

Please post some links to sources for these !!!

 

it comes on the new tahoes from the factory. any dealorship should be able to get it for you.