Stock Raptor wheels and tires will still have some amount of rub on the inner fender and likely your FX4 fender flares, even at the full 2" of ride height. You'd either need to trim both of those sections of your truck or go with coilovers capable of going beyond 2" of front ride height. The street ride on the Fox kits is pretty good, though maybe slightly stiffer than stock, however, your truck will feel more planted and have less of a tendency to bounce after rebound. The rear shocks can handle rear block sizes of up to 3" without having too much of an issue.