Kronos - it's difficult for me to say because round the same time i did the mod and things, i changed my chip to a e6750 which is an ice-queen of note..
but one thing i can say, it definitely pushes more air.. the Zalman fan only pushes something like 33cfm and the UV vantec that i used pushes 45cfm.. the main reason i did it is because the led's from the Zalman original didn't match with the UV led's of the other fans in my case..
if i wanted pure airflow, i probably would have looked for a 92mm Silverstone or something that pushes 70cfm+ ...
but i went for the looks...