BD Diesel Allison Pressure Controller - 2011-2016 Chevy Duramax 6.6L

25% to 115% more theoretical holding power; Delivers up to 275psi line pressure at WOT; Only active when boost over 15psi, unlike solenoid foolers or plugs which are active all the time; Does not create parasitic load or extra heat when inactive; Does not cause clunky or unusual shifts due to dynamic activation; No transmission relearn required; Installs in under an hour