I have my stock airbox with a airaid dryflow filter and the cold air tube in place of the rubber flap like most. I was wondering if the stock box would benefit from l less volume. I would think less volume would mean more velocity but idk. Ive seen people cut all the ribs out of the box but what if you could fill the deeper part of the box. Maybe use spray foam, sand then smooth it out. I made a quick plastic filler today out of boredom. Let me know what yall think about the foam idea.