No, The Air Intake Heater Boost Plug Adapter is not required for installation. However, it does help make the install easier as it is designed specifically for the 1999.5-2002 Ford Super Duty 7.3L Power Stroke and 2001-2004 6.6L GM Duramax and will allow you to easily read your truck’s boost levels without having to make any permanent modifications to your truck such as drilling and tapping your intake.
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