Don't know since I didn't put it on, but it looks like it requires some drilling, and then some screws, but that's about it. I think they charged me something like $50, plus it was used when I got it, so I got it for 1/2 off in the first place. You can tell it was used, but only if you look closely. Unfortunately, they put a decent scratch in the plastic on the Baja on the back of the cab, which kinda pissed me off. I guess it makes it look more rugged now.