Hello there- I'm a newcomer to the board but even in the last few weeks that I've been here, I've learned an incredible amount. This is really a great resource. I've just recently started modifying my N/A 91 240, and I was looking for a way to get some extra push out of it without going the forced induction route. I've installed the IPD sport exhuast and love it, but now I'm looking for something else- in short, the stock airbox seems to be extremely constrictive, and I was wondering how feasible it is to remove everything between the airbox and the intake manifold and replace it with a much more free flowing system. Any information you can give me about possible problems, difficulties, et cetera would be greatly appreciated. Thanks in advance.