you could, but you'd also need to smooth the inside of the box out (fiberlgass perhaps?), and also you'd need to use a foam filter somehow, not the K&N style....although the K&N style would work it'd be far true replica. Also, the ice box's box has a calculated volume and a calculate pipe length and ID size....so basically, no, you couldn't really make one exactly like it unless you knew what the heck you are doing..

- Nathan