Some people while trying to tune have issues with intake setup like that, air does not flow straight, need atleast 6" of straight piping.
Being stock,sure its fine
I have the 9" filter right on the end of my TB and my MAF readings didn't jump around at all while tuning..
97 GTP Sold-prolly rusted away by now
2011 F-150 Yote powered
Too Hot to Handle, Too Cold to Hold