car3fan,

Tell me more. can you post a picture of where you drilled the holes? is this the factory airbox, or do you have some other setup? is your car stock?

I regularly get 28-29 mpg on the highway with my '98 GT (stock), but I'd sure like to get 37 !

Thanks in advance.

No kidding! I've been meaning to ask the same thing myself. My friend and I are planning on making a custom intake soon with a K&N filter, and I'd love to do something like that, if it works.