Strut Tower braces are relatively easy to install. I don't believe you'll loose the engine cover with the good ones, maybe the cheap ones though.I read that you lose the engine cover with at least on make of strut brace. is that the case for all of them? Also, are they easy to install?
I also read that adding a brace changes the overall suspension (even if just slightly) which can actually damage other components over time (bushings, etc). Since the car was made to specs, once you change something, other thnigs tied to it need to be modified. Any truth to this thought?