Installation Instructions for 14700 Mass Air Flow Sensor Weld Boss 

For Slot-Style Ford MAF Sensor

This MAF adapter boss is design for use with a Hitachi slotted style MAF sensor (OEM on 2005-2010 Mustang & other vehicles). The arrow shows the direction of the airflow and should point toward the engine. The radius on the back of the boss is designed for use with 3” to 4” diameter aluminum tubing. This boss must be welded to the tubing by an experienced welder.