intake help please

i got home last night to put my S&B intake on and i ran into a problem. after i got the new air box in and the new intake tube in i went to put the mass air flow sensor into place and i noticed that the hole in the tube was too small for the sensor. also there are no pre drilled holes for the screws to hold it in. is this a common thing with S&B or did they srew up? i have put intake on before but never this brand. should i try to make the hole bigger and drill some holes or should i try to send it back to them? thanks in advance.