It's not up to the makers of the kit if you want sequential tail lights, the brake lights (same circuit) will sequence also. However, they only sequence once then all stay on, unless you let off the brakes & start again.
I installed them on my '05 & they work great. I bought them off e-bay (using make an offer) they install easy. The one I bought also had a connection to make the inside light function as a dual element like the rest of the bulbs, so you get a 3 light sequence all the time. Ford already put in dual element bulbs, just not dual element socket. :thumbsup