OBS Intake boot - Turbo to CCV Efuel Kit Stock intake boxes are a

Stock intake boxes are a significant contributor to poor airflow which is why S&B designs custom air boxes with secondary and/or enlarged openings

Sealant is not necessary

and designed to pump to the bank that is requesting fuel (firing)

The nozzles

OBS Intake boot - Turbo to CCV Efuel Kit Stock intake boxes are aThe original ORANGE boot that came on your OBS is likely broken at this point. This upgraded boot is way thicker, way stronger and fits perfectly over the OEM turbo and connects to the OEM cast aluminum CCV adapter. This boot will NOT work if you have an upgraded turbo with a larger intake housing. This boot will NOT work with the plastic super duty style CCV connection.