I'm thinking about putting an engine guard on my car. The engine case is wide open and looks like it could be seriously damaged if coming off a curb to hard. I've already scraped it once and had a look at it. I remember a few months back when someone posted saying his engine casing was cracked and I didn't believe him and now I can see what that guy was talking about. I want to prevent that from happening. I was wondering if this would hinder the aerodynamics and cooling of the car at all? Here's a link.

Tweeks S/S Engine Guard