Greg, I'm not so sure. You can up mains and lose mid range performance. I can't agrue with the results I've gotten. I've done lots of dyno runs. BUT, I would try adding the Bellmouth before making any airbox modifications. The Bellmouth replaces the entire top piece of the airbox that originally held the snorkel.
Last edited by RamSound; 07/12/2009 8:39 PM.