ENGINEERED FITMENT: Morimoto's A-Pillar kit for the 2021+ Ford Bronco has been through numerous rounds of design, prototyping and testing directly on the truck to ensure perfect compatibility. Everything lines up with pre-existing mounting points to create an installation that is truly modification-free. Guaranteed. Yes, we agree this is a basic requirement, but you wouldn't believe the poor fitment we encountered from other well-known brands during development. It was mind blowing.