Cheers for the tip Jase might try getting my hands on a stock airbox and see what i can come up with to make it look legit [ quote name=GTScotT' timestamp='1326340234' post='6185211]
Good move bro, I hate AFM's.
Try to retro an airbox back in then put a 4" adapter to the box and run a 4" pipe from the turbo fo the box.
FYI you can use an EVO pod filter adaptor for an easy 4" mounting flange. I do something similar with the airbox in my 200, I use an SR20 3" pod adaptor bolted to my airbox where the AFM normally goes and have a 3" pipe from there to the front of my 3" turbo.