thats what i was thinking...

the outside measurement for the stocker is 3.5" i think...but the actual iside diameter is still 75mm ...or 3"

hopefully you needed it to replace a broken one...cause if you wanted performance...you got suckered

 

i bought it b/c i have a ported descreend one with aftermarket ends on it.. and im trying to cancel out my poor MPG... the maf i have on now was on the car when i got it...

 

That's a good plan. A stock MAF will get you back on track.