You could just get a replacement filter for inside the airbox, the drill holes (make sure its on the side not facing the engine!) You wont lose much power, when i did it to my old car it sounded better than an aftermarket induction kit. In fact i liked the noise so much i didnt bother with a different exhaust for ages. Induction kits do F all anyway performance wise, its the noise your after, and drilling is the cheapest way after all.
-Rob