I read little bits about people modifying the airbox. I was wondering if anyone had tried using two K&N air filters and dust covers instead of the large flat stock filter. I was thinking of going this route. K&N basicly said they could do it knowing the flange measurements. I was thinking the pipe, more air, and some jetting adjustment would bring out some more ponies. What do ya all think? Is this a good way to go? I am a little hesitant to start cutting into the airbox.