I'm going to upgrade my whole intake. I have a (homemade) intake on there now. I have an '03 ZX3 and was going to buy the MAC intake and TB. The question i have is about the MAF sensor. I understand what it does, but will it make a big difference or should i save my money? Will the stock one fit the MAC In? I've seen the steeda ones and they are pricey. I'm a little new to the scene and would like any input available out there.