Throttle Valve Delete | Dodge Ram 6.7L Cummins | 2007.5-2024One part of a complete EGR delete that is overlooked by most Cummins owners is the factory throttle valve. With the stock EGR system in place, the stock Cummins throttle valve will open and close to adjust the ratio of fresh intake air to re circulated exhaust gasses. When its completely or partially closed, the engine draws the air needed through the EGR system. But when the EGR system is removed, there is no alternative source of intake air when the