[dreksnot]

Originally Posted by ZLRob

I've seen no benefit to cutting out the bottom, as I'm running the set up whole and still making solid power out of it. I've seen the threads where they talk about hacking it up but I can't for the life of me figure out why you would do that based on the results I've had with it.

Just to try it, I cut a 3" diameter hole with a circular saw in the bottom a spare intake housing I got for this very purpose. I did not notice any difference low end or top end on the street or road course. When I say any, I mean any. Also, no increase in boost. Kept the OEM filter in place (a green filter might flow better). I saw somewhere on these forums that someone dyno'd this, OEM, Rotofab to show the difference in HP gained/lost. I recall those numbers were insignificant. But, if you're looking for better looks - anything over the stock box is very nice.