Would I be wasting my time with the Granitelli MAF? So far all I have done on 2003 FX4 5.4L is Edelbrock shorty headers, Magna HFC, dual exhaust, and K&N series 57 FIPK. I was thinking about the BBK 75mm TB and the Granitelli MAF. I am also going to get the PHP CTS w/ custom tunes. If anyone could give me a little advice, I would appreciate it. thanks, TJ

 

MAF and TB are a waste of money without head work.