Chin spoiler was easy. I used the fastener kit that the dealer sold me with it. You have to choose to install like factory (flush at the wheel openings and slightly back at the front) or flush up front and short on the sides. I did it like stock Mach 1.
Grilled delete wasn't too bad either. You have to take all the top fasteners out of the existing and pull it forward to get at the bottom fasteners. Kinda a pain in the a$$, but well worth it.
That combo is what I have and I think it makes the front end look ALOT more aggressive.