I read on a couple of post's that you made your own FIPK instead of buying one. Could you tell me how you did it. The reason I am asking is I have a 1991 truck with a 302 that I'm converting to Mass Air. I am actually having difficulty locating an inlet duct from a 95 F150 with 4.9l and mass air. This duct is a Y duct like what I need. I thought that if you made something better, I would do that instead. 280 dollars for a plastic tube that says K & N seems like a ripoff. You can leave me a message here or email me at d427cobra@msn.com. Thanks in advance.