They come with a 2” lift over stock so if you’re doing 4” you really are only getting an extra 2? If you go 6 keep in mind how big tires and wheels you’d have to get to make the stance look good.
Personally I think the 2” over stock is perfect if anything I’m looking at spacers to get the stance perfect and keep in mind I always wanted a lifted truck so I’m not being too bias.
Interesting. I was under the assumption that it would be on top of the 2” already provided by the dealer. Perhaps someone can chime in and confirm here with information they have from a lift they have installed already.