Looking for even more unrestricted air flow? Then our heater delete plug for our 7.3L Intake Manifold System is the answer. This is a custom machined aluminum plug complete with a drilled, tapped and plugged 1/8" NPT port. 1/8" Port can be used to plumb boost gague into intake manifold or simply leave it plugged. ALSO WORKS WITH OEM INTAKE MANIFOLD.
