GlowShifts Boost Bolt Adapter for the 5.9L Cummins threads directly into your 1998.5-2007.5 Dodge Rams intake manifold, allowing you to easily install the barbed fitting or sensor that is included with your GlowShift Boost Gauge. Installation is extremely easy with no drilling and/or tapping necessary. Please note that this adapter does not work with the 6.7L Cummins, and it is important not to torque more than 10 ft-pounds. At GlowShift Gauges we also back any purchase with unrivaled Customer and Tech Support.