The Fujita is the loudest filter I've experienced so far.

[desertmike680]

I just swaped out my Sure motorsports filter for the Fujita (45 dollars on Ebay, 3 inch) and its much much more louder then the Sure and mostly any other standard filter I've utilized. I did my research prior to and I was pretty sure that it would be an increase in sound, and it is. Just an FYI.

Mike