The grill block looks great! The grill doesn't look that thick, so I'm going to bet that the added benefits of placing it on the outside are pretty marginal. It looks 100x better on the inside. I love the zipties too.. that's how my grill block is fastened
That's quite a stealthy airdam. I might look into getting that for my car also since it has black paint as well. Where did you get it, and what did you use to fasten it to the car?