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.
2012 Fusion SE 3.0L V6
'86 XR4Ti ; 2.3L Turbo, 15psi
1988 F150 Custom
'07 ST ; formally bewst'd - R.I.P
D23 Crew: #07