Umm, I can't remember on my 02 I had to disconnect a something on the driver side. But I think you dont have too. Also there is something you can do to program the car so when you lock/unlock the headlights dont flash also. I saved it but lost it. I vote homemade intake, get the eye sore of a stock box gone.

EDIT: Found it how to disable lights flash when lock/unlocking.

To simplify blackarrows last post, this is what I did;
Here is a way to disable the the headlight flash on the 01-03 models altogether without cutting anything.
Step 1: Remove MALL PGM fuse from passenger fuse block in the glove box
Step 2: Place key in ignition, turn igntion to ON, not start
Step 3: Push LOCK button on key fob. You should hear one (1) chime
Step 4: If you do not hear one (1) chime when you press the lock button, repeat til you do
Step 5: Turn key to OFF position and remove key from ignition
Step 6: Re-install MALL PGM fuse
Step 7: You are done!
Takes all of 5 mins, if that. It just disables all light flashing, but you can still use your key fob.