Or Import Tuner cover cars had them(Or something similar) on their front mount intercoolers. With the consensus being that side mounts are best for the Z and the associated costs of the system, I don't think a whole lot of people around here will be running them. Seems like everything I've seen or read about them has shown that they are effective at reducing temps and increasing power. Probably more bang for the buck elsewhere with the Z. Just my .02¢ though...