No, only fronts, but comparing apples with apples, I think they still worked out cheaper per corner. From what I know, I think you're pretty right about not feeling any gains from street use. The science behind the idea is solid, and clearly theres a good reason why high end performance cars and racecars run them, but for the everyman its probably not so much functional as for fap factor. For the sake of mentioning (for the lulz), I noticed the other week that the urinal in the gents at a local bar I frequent is fitted with braided hoses. I was amused.