I need a winter front for my Van. Driving in town it just won't get to normal operating temps. Who makes one, GM or aftermarket?

I couldn't find a gm one when I bought my van. got a FIA brand on ebay. cheapo plastic snaps. nice part is 2 flaps that open if you want some air. Same as you, I just use it when I'm staying around town and the high idle keeps kicking in.

Here's a pic of mine