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Contemplating a tuner. One of the older H & S ones. From what I have read when upping the power slightly with the deletes in place the EGR valve is kept closed. I also read that just closing the valve and not using block off plates can cause the EGR to stop up with carbon and require expensive replacement if the tuner is removed and the truck returned to stock.
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.