CNC Model 423003 Choice of Colors: Raw, Black, Blue, Red The air intake heater, which is found in ’99.5 and up 7.3 Powerstrokes, blocks close to 20% of the air...
The air intake heater, which is found in ’99.5 and up 7.3 Powerstrokes, blocks close to 20% of the air path in the intake manifold and creates significant turbulence in the airflow going into your engine. By removing this heater, and replacing it with the intake-heater delete plug, you eliminate the restriction in your airflow and eradicate the turbulence created by this relatively unnecessary part.
