After putting headers on with the big help of billboost, I have noticed that not only are they one of the best mods for the car(based on my broscience and how much the car loves it), but that dropping the cradle bolts and putting in the rear header takes about 20 minutes if that. Plus 10 minutes if you're not bill lol. All in all, with 3 parts runs, getting food, drinking beer, drilling out a broken manifold stud, flipping the sway bar(upstream O2 was unable to go in) and going at a modest pace, took us about 6 1/2 hours. So factoring if everything went according to plan it could have been a 4 hour job or less even with my slowness doing a good chunk of the work. So I would say lowering the cradle is one of the best things to do and also fairly easy when it comes to installing the rear header.