If you haven't bought the grill guard as yet I have two for you to choose from (an Aries and a Waag) ... in fact you can take both for the price of one (MAKE ME AN OFFER). I have the mounting brackets so you can install without drilling or cutting.
I sold my Xterra now but the brush guard came in handy when I hit a deer. Although I had to get a bunch of body work done, I was still able to get home, drive around for a couple of weeks and then get the necessary repairs done when I had time and money.
In my case it served the intended purpose.
And yes, I had a bug deflector on along with the brush guard. No issues.