Opps! did not see the fan in the background, I thought he meant he got rid of both in favor for this one fan. From the numbers I've seen I believe most STOCK electric fans flow more then any aftermarket fan will. There is no aftermarket electric fan that will flow more then a Mark vii fan/taurus fan. I still think the stock xj efan will flow more then an autozone fan but hey I could be wrong! Please get some numbers on this fan OP.... also for anyone wonder how fast the mark viii fan is, well - http://www.youtube.com/watch?v=oUlIFw0laZ8
Wish it was easier to fit one of those bad boys in the xj, I've been considering a taurus fan swap for the longest time.