I can't speak for the Axljak unit, but I can speak for the SpeedyMoto unit. I have one on my 996 and it's quite beefy, and my bike runs cooler even though it's a hopped up engine. I've personally seen one of their bikes that went down that was equipped with their water pump housing, and it did it's job admirably with nary a scrach.I've also seen similar bikes with the OEM housing cracked in two. Is it worth $349? To me it is, but that's just me.