I got a "Costom Ram Air system", my maf is also moded. I did this to rectify a problem asociated in the moding of the maf, I had a lean condition at low RPM.
Some have tried this and found that they had a better throttle responce even if they did not moded their maf. I'm not saying do it, I'm only passing on some info that might interest you or others. I might also get some good feedback about it. Give it a try you might be surprise.
Have a look at my site. http://www.lks.net/~ghislisa/ I'm still working on it. Some of the thumbnail might not work, but it might give you an idea of what I did. Remember I'm not a pro, just a regular Joe that is willing to play with his toy.

Ghislain