DIY: Coroplast grill block

[Daox]

I always have the mail slot blocked...so maybe I should experiment with removing that portion during warmer temps instead of un-blocking the lower grill.

Its generally better to keep the upper grill blocked. Pushing more air over the hood is better than pushing air around the sides or under the car.

Impressive. Dude you're always more than a step ahead.

Thanks!