I've thought about doing that ever since I ran with Budweiser in Albq who's done that drill the bottom of the airbox mod. I suppose it would allow me to run 1 or 2 sizes larger on my main jets. Might as well go for the gusto though and run the Freak IMO.
Already have the Unifilter. Really it shouldn't be much different as far as how much air flows through compared to the stock paper filter. I just put in the Unifilter so I wouldn't have to buy an air filter every 12,000 miles(maintenance schedule said every 8,000 miles though back when I bought my Unifilter).
