I ran a 3" MAF tube with stock MAF and no MAFia. 8 psi, 218whp, 216wtq.
Low end drive-abilty was effected some because the air was moving so slow over the MAF but I never had any problems.
2010 Ford Escape 3.0 V6
2004 F350 6.8L V10
1986 XR4Ti 2.3L Turbo
2007 ST ; formally bewst'd - R.I.P