All it requires is the recommended factory rack found in the Fit Guide (you can also check out www.yakima.com and click on the 'Fit My Car' link). The benefit of the LowRider and new RailGrab is they install fairly effortlessly on your car's factory tracks or rails, no clips required. The only thing to consider are the SKS lock cores that add a tremendous amount of security. Not included are a set of crossbars which completes the package. It's what I have on my Subaru and I couldn't be happier!